Fudgy Flourless Black Bean Brownies

These black bean brownies are deeply chocolatey, incredibly fudgy, and made without a speck of flour. They taste so rich that no one will guess the secret ingredient.

The batter comes together in a food processor in minutes, and the brownies bake up with crackly tops and dense, moist centers.

Why These Black Bean Brownies Work

They’re as fudgy as any classic brownie, with a deep chocolate flavor that comes from a mix of cocoa powder and melted chocolate chips. The black beans add richness and moisture, but you won’t taste them at all. Each bite has a slight chew around the edges and a soft, almost truffle-like center.

I love that they’re naturally gluten-free and higher in fiber and protein than a standard brownie, so I feel good about eating one or two.

Ingredients

• 1 (15-oz) can black beans, rinsed and drained: any brand works; no need to dry them completely.
• 3 large eggs: provide structure; for vegan option, see Variations.
• ⅓ cup melted coconut oil: or melted unsalted butter or avocado oil.
• ¾ cup granulated sugar: coconut sugar works well for a less sweet, deeper flavor.
• ½ cup unsweetened cocoa powder: use Dutch-process for extra richness.
• 1 tsp baking powder: helps them rise just enough without flour.
• 1 tsp vanilla extract: rounds out the chocolate.
• ¼ tsp fine salt: brings the chocolate forward.
• ½ cup semisweet chocolate chips: plus 1 tablespoon for topping.

Variations / Substitutions

• Make them vegan: replace the eggs with 3 flax eggs (3 tbsp ground flaxseed mixed with 9 tbsp water, let sit 5 minutes) and use vegan chocolate chips.
• Reduce the sugar: coconut sugar or a granulated monk fruit sweetener both work; the texture stays fudgy.
• Add espresso powder: stir 1 teaspoon into the dry ingredients to intensify the chocolate flavor without tasting like coffee.
• Swap the fat: melted butter adds a buttery note, avocado oil keeps it neutral, coconut oil gives a subtle nuttiness.
• Change the mix-ins: chopped walnuts, pecans, or a handful of dried cherries fold in nicely.

If you like these, try my flourless peanut butter cookies.

How to Make Black Bean Brownies

Step 1: Blend the Wet Ingredients

Preheat the oven to 350°F (175°C) and line an 8-inch square pan with parchment paper so the ends overhang. Put the rinsed black beans, 3 eggs, ⅓ cup melted oil, ¾ cup sugar, and 1 teaspoon vanilla into a food processor. Blend until the mixture is completely smooth and no bean chunks remain, about 1 minute, scraping down the sides once.

The batter will look thick and glossy, almost like a chocolate mousse. That’s exactly what you want.

Step 2: Whisk the Dry Ingredients

In a small bowl, whisk the ½ cup cocoa powder, 1 teaspoon baking powder, and ¼ teaspoon salt until no lumps of cocoa remain. No need to sift, just give it a good whisk.

The dry mix should look uniformly dark and feel light. A little extra effort here keeps the brownies from having cocoa pockets.

Step 3: Fold the Batter Together

Add the dry ingredients to the food processor and pulse three or four times, just until the cocoa disappears. Do not overmix or the brownies can get tough. Open the lid, scrape the sides, then add the ½ cup chocolate chips and fold them in by hand with a spatula.

The batter will be thick and glossy, flecked with chocolate chips. A few streaks of cocoa are fine.

Step 4: Bake the Brownies

Scrape the batter into the prepared pan and spread it into an even layer. Scatter the extra 1 tablespoon of chocolate chips on top. Bake for 25 to 30 minutes, until the edges look set and the center no longer jiggles. A toothpick inserted in the middle should come out with a few moist crumbs, not wet batter.

The top will have a slight crackle, and the whole kitchen will smell like brownies. Be careful not to overbake, they firm up a lot as they cool.

Step 5: Cool and Slice the Brownies

Let the brownies cool in the pan for 15 minutes. Use the parchment overhang to lift the whole slab onto a cutting board, then slice into 9 squares while still slightly warm.

The insides will be dense and shiny, with melty chocolate chips. Serve them right away while the edges are still a little crisp.

Tips for the Best Black Bean Brownies

• Use a food processor for the smoothest batter; a high-speed blender works but may require a little more scraping.
• Don’t rinse the beans too aggressively or you’ll wash away salt and starch that help the texture. A quick rinse in a colander is enough.
• If your cocoa powder is clumpy, whisk it with the other dry ingredients thoroughly or sift it to avoid dry spots.
• For the cleanest slices, let the brownies cool completely, about 1 hour. They cut neatly when fully set, but warm slices taste incredible with a scoop of ice cream.

Bake times by pan size:

Pan Size	Bake Time
8×8-inch	25–30 minutes
9×9-inch	22–27 minutes

Storing Leftover Brownies

• Refrigerate: store in an airtight container for up to 5 days. The cold intensifies the fudgy texture.
• Reheating: warm individual squares in the microwave for 15‑20 seconds to soften the chocolate chips again.
• Serve Cold: they’re delicious straight from the fridge with a glass of milk.

Frequently Asked Questions

Can I use a different type of bean?

Yes, canned kidney beans or cannellini beans work, but black beans have the mildest flavor and darkest color. Chickpeas can taste slightly earthy, so stick with black beans for the most classic brownie taste.

Why did my brownies turn out cakey?

Overbaking or using too much baking powder usually causes a cakey texture. Bake just until a toothpick shows moist crumbs, and measure the baking powder level, not heaping. The batter should be thick and fudgy, not airy.

Do I need a food processor, or can I use a blender?

A food processor gives the smoothest, quickest blend. A high-speed blender also works if you stop to scrape down the sides a few times. Avoid mashing by hand, it’s nearly impossible to get the beans completely smooth that way.

Can I double this recipe?

Yes, double all ingredients and use a 9×13-inch pan. Bake for 28 to 33 minutes, checking for moist crumbs on a toothpick. The squares will be a bit thicker but just as fudgy.

Are these brownies actually healthy?

They’re made with beans, so they have more fiber and protein than regular brownies, plus no flour. They still contain sugar and oil, so enjoy them as a treat you can feel a little better about.