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Indulge in Decadent Small Batch Vegan Peanut Butter Swirl Brownies: Fudgy, Gluten-Free & Dairy-Free Perfection

Prepare yourself for a truly extraordinary dessert experience with these molten ‘brown butter’ vegan peanut butter brownies. This recipe crafts just 8 perfectly fudgy brownies, each boasting a luscious, soft peanut butter center that will transport you straight to chocolate-peanut butter heaven. Forget about eggs and dairy – these rich, chocolatey delights are entirely vegan, gluten-free, grain-free, and dairy-free, making them accessible and enjoyable for everyone. They taste so incredibly close to the classic, no one will ever guess they’re a healthier, plant-based alternative!

Discover Why These Small Batch Vegan Peanut Butter Brownies Will Become Your New Favorite

If you’re a devoted chocolate peanut butter enthusiast and appreciate the convenience of a small batch recipe, then these fudgy, decadent vegan peanut butter swirl brownies are an absolute must-try. Here’s why this recipe stands out:

Unbelievably Fudgy Texture: Each bite offers a rich, dense, and intensely chocolatey experience, with that perfect gooey center that defines a truly exceptional brownie.
Signature ‘Brown Butter’ Flavor: We infuse the brownie batter with the deep, nutty, and caramel-like notes of brown vegan butter, elevating the flavor profile to gourmet heights. This unique touch adds an unparalleled richness you won’t find in typical vegan brownies.
Reese’s-Inspired Peanut Butter Swirl: Nestled within the rich brownie batter is a dreamy, soft peanut butter filling, reminiscent of your favorite Reese’s peanut butter cups. This provides a delightful contrast in texture and a burst of savory sweetness.
Small Batch Perfection: No need to bake a giant tray of brownies! This recipe yields exactly 8 generously sized brownies, perfect for a small gathering, a weekend treat, or when you simply crave a few indulgent squares without leftovers going stale.
Completely Plant-Based & Allergy-Friendly: These brownies are made without eggs or dairy, making them ideal for vegans, those with lactose intolerance, or anyone looking to enjoy a delicious dessert with fewer allergens. Plus, they can easily be made gluten-free and grain-free.
Simple, Accessible Ingredients: You’ll be surprised at how easy it is to create such a show-stopping dessert with common pantry staples. You likely have most of the ingredients on hand right now!

Get ready to impress yourself and your loved ones with these incredible vegan peanut butter brownies that prove plant-based baking can be just as, if not more, delicious than traditional desserts.

Unlock Deeper Flavor: The Magic of Brown Vegan Butter in Your Brownies

The term “brown butter” might sound intimidating, but it’s a simple technique that yields incredible flavor depth, and it works wonderfully with vegan butter! I personally adore using brown vegan butter in this small batch peanut butter brownie recipe because it contributes a profound nutty, caramel-like richness that truly elevates the brownies. It’s quite astonishing how beautifully vegan butter browns, rivaling the dairy version in creating those coveted golden flecks and toasted aroma. For the best results, I highly recommend a high-quality vegan butter brand like Miyoko’s, which browns exceptionally well.

However, if you’re short on time or prefer to simplify the process, you can certainly skip the browning step altogether. In this case, simply use 1/4 cup (57 g) of plain melted vegan butter instead of the initially listed 1/3 cup. The browning process reduces the butter’s volume, so 1/3 cup of unbrowned butter reduces to approximately 1/4 cup after browning. While the brownies will still be delicious with plain melted butter, browning adds an extra layer of complexity and a unique depth of flavor that is highly recommended for an ultimate treat.

Overview: Your Step-by-Step Guide to Crafting Vegan Peanut Butter Swirl Brownies

Making these decadent vegan peanut butter brownies is a straightforward process, designed for both novice and experienced bakers. While the comprehensive brownie recipe with precise measurements is provided in the recipe card below, let’s walk through the essential steps here to give you a clear overview of what to expect.

You’ll start by preparing a quick and easy peanut butter filling that gets chilled to firm up. Next, you’ll create the star of the show: a rich, fudgy brownie batter, which includes the optional but highly recommended step of browning your vegan butter for an extra layer of nutty flavor. Finally, you’ll layer these two irresistible components in a loaf pan and bake them to perfection. Each stage is designed to be manageable, ensuring a smooth and enjoyable baking experience that results in truly spectacular brownies.

Expert Tips for Mastering Your Small Batch Vegan Peanut Butter Brownies

Achieving the perfect fudgy texture and delicious flavor in these vegan peanut butter brownies is easier than you think with these expert tips:

Work Quickly During Assembly: The key to a smooth assembly process is speed! The brownie batter contains melted chocolate, which will begin to cool and thicken as it sits. To ensure your batter remains easily spreadable and creates those beautiful layers, prepare all your components (the chilled peanut butter layer and the brownie batter) before you start layering. Once the brownie batter is ready, move efficiently to get it into the pan. If the batter becomes too thick, you can gently warm it over a double boiler for a few minutes to regain spreadability, but avoid overheating.
Experiment with Nut or Seed Butters: While peanut butter is the star here, this recipe is wonderfully versatile. If you’re not a fan of peanut butter or have a nut allergy, you can easily substitute it with your favorite nut butter or seed butter. Almond butter offers a slightly more subtle, sophisticated flavor, while cashew butter provides a creamy, rich taste. For a completely nut-free option, Biscoff cookie butter is an outstanding choice, lending a unique spiced caramel flavor that pairs beautifully with chocolate. Sunbutter (made from sunflower seeds) is another excellent allergy-friendly alternative, though it might impart a slightly different color and flavor.
Ensure Gluten-Free Perfection: Making these brownies gluten-free is simple! I highly recommend using a high-quality 1:1 gluten-free baking flour blend, such as King Arthur Measure-for-Measure gluten-free flour. These blends are specifically formulated to mimic the properties of all-purpose flour, including gums and starches, making substitutions straightforward. Always check the label to ensure your chosen blend is suitable for baking and contains xanthan gum if not added separately. Avoid single-ingredient gluten-free flours like almond or coconut flour, as they require different liquid ratios and can drastically alter the texture.
Precision is Key: Use a Kitchen Scale for Optimal Results: The difference between a perfectly fudgy brownie and a dry, cakey one often comes down to precise ingredient measurement, especially with flour. Brownies are particularly sensitive to over-flouring. The most accurate method to measure flour and other dry ingredients is by using a kitchen scale. This eliminates inconsistencies that come with volumetric measurements (cups), which can vary widely depending on how densely you pack the flour. If you don’t have a kitchen scale, make sure you use the “spoon and level” method: gently spoon the flour into your measuring cup until it’s overflowing, then level it off with a straight edge (like the back of a knife) without packing it down. This prevents you from adding too much flour and ensures that coveted fudgy texture.

If you embark on the delightful journey of making these vegan peanut butter swirl brownies, please take a moment to leave a comment down below, along with a star rating ⭐️⭐️⭐️⭐️⭐️. Your feedback helps others discover and enjoy these incredible plant-based brownies!

I genuinely hope you cherish these brownies as much as I do! I eagerly anticipate seeing your beautiful recreations shared on Instagram and Pinterest. Until our next baking adventure, happy swirling and happy indulging!

Craving Later? Pin This Recipe to Your Favorite Board on Pinterest!

Print Recipe

Small Batch ‘Brown Butter’ Vegan Peanut Butter Brownies

5 Stars 4 Stars 3 Stars 2 Stars 1 Star
5 from 2 reviews

Author: Britt Berlin
Prep Time: 20 minutes
Cook Time: 30 minutes
Total Time: 50 minutes
Yield: 8 Brownies
Category: Dessert
Method: Baking
Cuisine: American
Diet: Vegan, Gluten-Free Option

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Description

These magnificent small batch vegan peanut butter brownies are a dream come true for any chocolate and peanut butter lover. Featuring rich, fudgy ‘brown butter’ brownie layers sandwiching a creamy, decadent peanut butter center, they offer an unparalleled taste experience. Best of all, they’re entirely plant-based, egg-free, dairy-free, and can be easily made gluten-free, proving that indulgent treats can also be inclusive and delicious for everyone!

Ingredients

Scale

For the Peanut Butter Filling:

1 cup (240 g) creamy peanut butter (natural, unsweetened is best)
1/2 cup (60 g) powdered sugar
1/4 cup (57 g) vegan butter, melted
1 tsp vanilla extract

For the Brown Butter Brownies:

1/3 cup (80 g) vegan butter or coconut oil, for browning (yields 1/4 cup browned butter)
1/4 cup (25 g) high quality Dutch-processed cocoa powder*
3 ounces vegan chocolate (chips or chopped bar)
1/8 cup (40 mL) dairy-free milk, room temperature* (almond, soy, or oat work well)
1/3 cup (75 g) granulated sugar
1/4 cup (50 g) light brown sugar, packed
1/4 cup (50 g) plain dairy-free yogurt (unsweetened, full-fat for best results)
1/2 tsp vanilla extract
1/4 tsp sea salt
3/4 cup (100 g) all-purpose flour or gluten-free 1:1 baking flour blend
1/4 cup (40 g) additional vegan chocolate chips, for folding into batter

Instructions

Prepare Your Pan & Oven: Preheat your oven to 350°F (175°C). Line a standard 9×5 inch loaf pan with parchment paper, leaving an overhang on the longer sides to create “slings” for easy removal later. Initially, you may use wax paper for the peanut butter layer, but parchment is crucial for baking the brownies. If your loaf pan is narrower, adjust baking time as needed, as thicker brownies will require longer. Take a moment to read through all instructions and gather your ingredients.
Craft the Peanut Butter Filling: In a medium bowl, combine the creamy peanut butter, powdered sugar, melted vegan butter, and vanilla extract. Stir vigorously with a spoon or whisk until all ingredients are thoroughly combined and form a thick, pliable dough. Press this peanut butter dough evenly into the bottom of the prepared loaf pan (lined with wax paper at this stage). Place the loaf pan into the freezer to chill and firm up while you prepare the brownie batter. This chilling step is essential for easy handling and distinct layers.
Brown the Vegan Butter (Optional, but Recommended): In a small, light-colored saucepan, melt the 1/3 cup (80g) vegan butter over medium heat. Continue stirring frequently as the butter melts, foams, and begins to change color. Reduce the heat to medium-low to prevent burning. Keep stirring and watching closely for light brown flecks to appear at the bottom of the pan and a distinct nutty, toasted aroma to emerge. This usually takes 5-8 minutes. Once browned, immediately remove the saucepan from the heat. If you choose to skip the browning, simply use 1/4 cup (57g) plain melted vegan butter that is still hot.
Create the Rich Fudge Sauce: Pour the hot browned vegan butter (or plain melted vegan butter) over the 3 ounces of vegan chocolate (chips or chopped bar) in a heat-safe bowl. Allow it to sit undisturbed for about 2 minutes to let the residual heat melt the chocolate. Then, stir gently with a spatula or whisk until the chocolate is completely smooth and fully melted into the butter. Next, add the Dutch-processed cocoa powder and stir until it is thoroughly dissolved into the chocolate mixture, forming a glossy, rich fudge sauce. Set this aside to cool slightly.
Dissolve the Sugars for Ultimate Fudginess: In a separate medium-sized mixing bowl, combine the room temperature dairy-free milk, granulated sugar, light brown sugar, dairy-free yogurt, vanilla extract, and sea salt. Using a hand mixer, beat the mixture on medium speed for 2-3 minutes, or until the sugars are nearly dissolved. When you pinch a small amount of the batter between your fingers, you should feel very few, if any, sugar granules. This step is crucial for achieving that signature fudgy, crackly-top brownie texture.
Combine Brownie Batter Components: Pour the prepared chocolate fudge sauce from Step 4 into the sugar mixture. Mix with the hand mixer on low speed until the chocolate mixture is fully combined and the batter is uniform in color and texture. Next, add the all-purpose flour (or gluten-free 1:1 baking flour) to the wet ingredients. Mix on the lowest speed possible, or gently fold with a spatula, JUST until the flour streaks disappear and the batter is integrated. Be careful not to overmix, as this can develop gluten and lead to a tougher brownie.
Fold in Extra Chocolate Chips: Add the additional 1/4 cup (40g) vegan chocolate chips to the brownie batter. Using a silicone spatula, gently fold them into the batter until they are evenly distributed throughout. This adds extra pockets of melted chocolate for an even richer brownie.
Assemble Your Peanut Butter Brownies: Carefully retrieve the loaf pan with the chilled peanut butter layer from the freezer. Lift the wax paper (with the peanut butter layer) out of the pan and set it aside. Now, re-line the empty loaf pan with fresh parchment paper, ensuring the overhang for easy removal. Pour about half of the brownie batter into the bottom of the parchment-lined pan and spread it evenly to the edges. Gently place the chilled peanut butter layer directly on top of the brownie batter. Finally, carefully pour the remaining brownie batter over the peanut butter layer and spread it evenly to cover the entire surface.
Bake to Perfection: Transfer the assembled loaf pan to the preheated oven. Bake for 30-32 minutes. The brownies are done when a toothpick inserted into the center (avoiding the peanut butter layer) comes out with moist crumbs, but not wet batter. The edges should look set, but the center might still be slightly soft for ultimate fudginess.
Cool & Garnish: Remove the brownies from the oven and place the pan on a wire rack to cool completely for at least 20-30 minutes. Cooling is vital for the brownies to set properly and prevent them from crumbling when sliced. For an extra touch of indulgence, gently press vegan peanut butter cups onto the warm surface of the brownies immediately after removing them from the oven. As they cool, the peanut butter cups will melt slightly and adhere beautifully.
Slice and Serve: Once cooled, use the parchment paper overhangs to carefully lift the entire brownie slab out of the loaf pan. Place it on a cutting board. Use a large, sharp kitchen knife (wiping it clean between cuts for neat slices) to slice the brownies into 6 or 8 generous squares. Serve and savor these incredibly fudgy, peanut buttery, and perfectly sweet vegan brownies!

Notes

Gluten-Free Flour: For a truly successful gluten-free rendition of these brownies, I highly recommend using a commercial 1:1 gluten-free baking flour blend that contains xanthan gum. My personal favorite for reliable results is King Arthur Measure-for-Measure gluten-free flour. Avoid using single-ingredient gluten-free flours, as they will alter the texture significantly.

Dutch-Processed Cocoa Powder: Dutch-processed cocoa powder creates a darker, richer chocolate flavor and a more intense color in your brownies compared to natural cocoa powder. It also has a less acidic profile, contributing to the fudginess.

Dairy-Free Milk & Yogurt: Ensure your dairy-free milk (almond, soy, or oat work well) and dairy-free yogurt are at room temperature. Using full-fat, unsweetened plain dairy-free yogurt will provide the best moisture and richness for the brownie batter.

Vegan Chocolate Cups: If you choose to top your brownies with extra vegan peanut butter cups, I recommend Justin’s Dark Chocolate Peanut Butter Cups for their excellent flavor and melting consistency.

Storage: Store leftover brownies in an airtight container at room temperature for up to 3 days, or in the refrigerator for up to a week. They can also be frozen for up to 1 month; thaw at room temperature before serving.