Bob's Red Mill Chocolate Cake Recipe: Moist Crumb and Coffee-Infused Depth

This Bob's Red Mill chocolate cake delivers the perfect balance of moist crumb and deep, coffee-infused richness that makes every slice unforgettable. The secret lies in using Bob's Red Mill cocoa powder and all-purpose flour, which create that signature tender texture while allowing the chocolate flavor to truly shine.

I've baked countless versions, and this one consistently earns raves for its ability to stay moist for days—no dry crumb in sight.

The recipe begins with a simple yet precise mixing method that ensures even distribution of ingredients, preventing dense layers. A touch of instant espresso powder enhances the chocolate depth without overpowering it, while buttermilk keeps the crumb light and airy.

The coffee infusion transforms this from a basic chocolate cake into something truly special, with flavors that develop beautifully as it cooks.

What sets this cake apart is its versatility—serve it warm with vanilla ice cream for a classic dessert, or dust with powdered sugar for an elegant presentation. The moist texture makes it perfect for layering with cream cheese frosting or even a simple ganache.

Each slice delivers that perfect combination of rich chocolate and subtle coffee notes that linger on the palate.

Whether you're baking for a celebration or simply craving a decadent treat, this recipe delivers restaurant-quality results with minimal effort. The key is patience during baking and proper cooling, which ensures clean layers and easy slicing. Let's get started on creating your perfect chocolate cake.

Ingredients for bob's red mill chocolate cake

Bob's Red Mill flour and cocoa make this cake uniquely tender and richly chocolatey.

The Bob's Red Mill cocoa and flour are non-negotiable here—they create that signature tender crumb. Grab the Dutch-processed cocoa if you want deeper chocolate flavor, or stick with natural for a slightly tangy bite. Bob's Red Mill has the best all-purpose flour for cake baking, but King Arthur is a solid backup. The espresso powder is key—Starbucks VIA or Nescafé work perfectly. For butter, Plugrá or Land O'Lakes are reliable, but don't use salted. Room temperature is critical—cold butter creates dense layers.

No instant espresso powder? Brew 1 tbsp strong coffee and cool it—same effect. Short on buttermilk? Mix 1 tbsp vinegar or lemon juice with 1 cup milk and let sit. The vanilla extract can be imitation, but pure Madagascar bourbon vanilla takes it to the next level. For a gluten-free version, swap the flour for a 1:1 gluten-free blend—just increase the butter by 1 tbsp. The hot water is for the cocoa bloom, but if you skip it, just whisk the cocoa with the dry ingredients.

This cake stays moist for 4-5 days at room temperature, wrapped tightly. For longer storage, freeze slices wrapped in plastic for up to 3 months. The coffee flavor intensifies overnight, so leftovers are even better. I always bake two pans—one for dinner, one for breakfast with ice cream. The layers slice cleanly if cooled completely before wrapping. Trust me, the wait is worth it.

Step-by-step instructions for bob's Red Mill chocolate cake

This method delivers a fudgy-yet-moist chocolate cake with deep coffee notes and perfect rise every time.

In a large mixing bowl, combine the 2.5 cups Bob's Red Mill All-Purpose Flour, 1 cup Bob's Red Mill Unsweetened Cocoa Powder, 2 cups Granulated Sugar, 0.5 cup Light Brown Sugar, 1 tbsp Instant Espresso Powder, 1.5 tsp Baking Soda, and 0.5 tsp Salt. Use a whisk to break up any cocoa powder clumps and ensure all dry ingredients are evenly distributed throughout.

This step is crucial for creating a tender crumb. The instant espresso powder will dissolve completely during mixing, adding that subtle coffee depth without gritty texture. Sift the dry ingredients if you have a sifter—this aerates the flour and prevents dense pockets in your cake.

In a separate large mixing bowl, beat the 1 cup Unsalted Butter (at room temperature) with the 2 whole Large Eggs on medium speed for 3-4 minutes until light and fluffy. The mixture should nearly double in volume and become pale yellow. Add the 2 tsp Vanilla Extract and mix for another 30 seconds to fully incorporate.

This creaming process incorporates air, which creates that signature tender crumb. Press the butter between your fingers to test—it should hold its shape but still be soft. If it's too firm, let it sit at room temperature for another 10 minutes before proceeding. The butter needs to be pliable but not melted.

With the mixer on low speed, gradually add about ⅓ of the dry ingredients to the butter mixture, mixing just until combined. Then add the 1 cup Buttermilk and mix until smooth. Scrape down the sides of the bowl with a rubber spatula to ensure even distribution.

Add the remaining dry ingredients in two more additions, mixing on low speed just until combined after each addition. Overmixing develops gluten, which leads to a tough cake. Stop mixing as soon as no flour streaks remain visible. The batter should be thick but pourable—like heavy pudding.

In a small bowl, whisk together the 0.5 cup Hot Water and 1 tbsp Instant Espresso Powder until completely dissolved. This creates a cocoa bloom that enhances the chocolate flavor. Stir this mixture into the cake batter until fully incorporated.

Preheat your oven to 350°F. Grease two 9-inch round cake pans with butter or baking spray, then line the bottoms with parchment paper. Divide the batter evenly between the prepared pans—fill each about ⅔ full. Tap the pans gently on the counter to release any air bubbles and level the tops.

Bake the cakes for 30-35 minutes, or until a toothpick inserted in the center comes out with just a few moist crumbs (not wet batter). Rotate the pans halfway through baking for even heat distribution. The edges should be set while the center remains slightly springy.

Don't overbake—this cake continues cooking as it cools. Let the cakes rest in their pans for 10 minutes, then transfer to a wire rack to cool completely. The internal temperature should be about 200°F when done. This patience ensures maximum moisture retention and that perfect fudgy texture.

Storing and reheating your leftovers

Room-Temp Storage

This cake stays moist and delicious for 4-5 days at room temperature when properly stored. Wrap each layer tightly in plastic wrap, then place in an airtight container with a slice of bread to absorb excess moisture.

Store in a cool, dark place like a pantry—never the fridge, as cold temperatures dry out the crumb. I always cut the cake into slices before storing so each piece is perfectly portioned. 💫

Fridge Preservation

If you need to store leftovers beyond 5 days, refrigerate in an airtight container for up to 1 week. The cold environment intensifies the coffee flavor, making each slice even more decadent.

Let slices sit at room temperature for 10-15 minutes before serving to restore the perfect texture. I recommend reheating refrigerated slices to revive the fudgy quality.

Freezer Perfection

For long-term storage, freeze slices wrapped individually in plastic wrap, then place them in a freezer bag with all air removed. This cake freezes beautifully for up to 3 months without losing moisture or flavor.

Thaw overnight in the fridge—never at room temperature—to prevent condensation. The coffee notes develop even more richness after freezing, making this an ideal make-ahead dessert for holidays. ✨

Reheating Secrets

For that freshly baked experience, reheat slices in a 350°F oven for 8-10 minutes wrapped in foil. Alternatively, use the microwave at 50% power for 20-30 seconds—just enough to warm through without drying.