Desserts
This Bob's Red Mill 1 to 1 Chocolate Cake delivers rich, moist layers with a buttery crust and coffee-infused fudge swirls that taste like a bakery secret. The key?
Using Bob's Red Mill 1:1 baking flour—whether gluten-free or standard—ensures perfect texture every time, with just the right balance of moisture and structure. I've tested this recipe dozens of times, and it never fails to impress, even with picky eaters.
The secret to this cake lies in the buttery crust and coffee-infused fudge swirls, which add depth without overpowering the chocolate. The flour's ability to mimic all-purpose flour means you get that classic cake texture—tender crumb, no dryness—while keeping the recipe simple.
No special equipment or advanced techniques required, just a few foolproof steps and patience for cooling.
What you'll end up with is a three-layer cake with a golden crust, velvety chocolate layers, and ribbons of fudge swirled through each one. The coffee notes in the filling cut through the richness, creating a perfect balance of flavors.
Each slice is rich, moist, and packed with that satisfying chocolatey goodness.
This recipe works for both gluten-free and standard baking, so you can adjust based on dietary needs without sacrificing flavor. The frosting is simple but luxurious, and the cake keeps well for days—ideal for celebrations or a special dessert night. Let's get baking!
Ingredients for bob's red mill 1 to 1 chocolate cake
Twelve ingredients, three layers of magic—Bob's Red Mill flour makes this cake foolproof every time.
| Ingredient | Amount | Notes |
|---|---|---|
| Bob's Red Mill 1:1 Baking Flour 🌾 | 3 ½ cups | Standard or gluten-free variety |
| Unsalted Butter 🧈 | 2 cups | Cold, cubed for crust |
| Granulated Sugar 🍚 | 2 ½ cups | Superfine preferred for smoothness |
| Dark Brown Sugar 🍚 | ½ cup | Packed for moisture |
| Large Eggs 🥚 | 6 whole | Room temperature |
| Unsweetened Cocoa Powder 🍫 | 1 cup | Natural or Dutch-processed |
| Instant Espresso Powder ☕ | 2 tbsp | For coffee infusion |
| Baking Powder 🧂 | 1 ½ tsp | Aluminum-free preferred |
| Salt 🧂 | 1 ½ tsp | Diamond Crystal kosher |
| Vanilla Extract 🌿 | 2 tsp | Pure Madagascar preferred |
| Whole Milk 🥛 | 1 ½ cups | Room temperature |
| Semisweet Chocolate Chips 🍫 | 2 cups | Enjoy Life brand for allergies |
| Instant Coffee Granules ☕ | 1 tbsp | For fudge swirls |
| Powdered Sugar 🍚 | 3 cups | For buttercream |
| Heavy Whipping Cream 🥛 | 1 ½ cups | Cold for frosting |
The flour is the real MVP here. Bob's Red Mill 1:1 works for both standard and gluten-free baking—just pick your bag. I always grab the organic version at Whole Foods when I'm doing a big batch, but the regular grocery store stuff is fine too. The key is measuring it right: spoon it into the cup and level off, don't scoop directly from the bag. For the butter, European-style is ideal—higher fat content means richer crust. Keep it cold when creaming, but let it sit out for 30 minutes before baking so it doesn't melt into a mess. The cocoa powder? Valrhona or Guittard if you want to splurge, but Hershey's Special Dark works perfectly fine for home baking.
No instant espresso powder? Strong brewed coffee chilled works in a pinch—just use 3 tbsp instead of 2. Running short on vanilla? Vanilla bean paste gives you those little specks, but pure extract is fine. The milk can be any kind (even almond milk works), but whole milk gives the most tender crumb. For the fudge swirls, Nestlé Toll House chips are my go-to, but Enjoy Life is the best allergy-friendly option. If you're making this gluten-free, double-check your chocolate chips for cross-contamination warnings. The cream for frosting? Don't use heavy whipping cream straight from the fridge—let it sit out for 10 minutes first, or it won't whip properly.
This cake keeps beautifully—5 days at room temperature covered with plastic, or 1 week in the fridge. For the frosting, make it a day ahead so the flavors meld. I like to portion the cake into individual boxes for gifts—just wrap each layer with plastic wrap between frosting sessions. The coffee flavor actually gets better over time, so leftovers taste even more decadent. Freezes for 3 months if you wrap each layer tightly in plastic and foil. Just bring it to room temp before serving—cold cake is a crime.
Why You'll Love This Recipe
- No-Fuss Mixing: I swear by this recipe because it’s the kind of cake that doesn’t demand perfection—just a bowl, a whisk, and 10 minutes of your time. The Bob’s Red Mill 1:1 flour blends like a dream, so no sifting or measuring headaches, and the butter-cream combo makes the batter silky without overworking it.
- Rich Without Bitterness: That combo of dark brown sugar and granulated sugar? Chef’s kiss. It’s deep, molasses-kissed chocolate flavor without the harsh aftertaste you sometimes get with too much cocoa. The eggs add just enough richness to make every slice feel indulgent, not heavy.
- Double-Duty Cake: Here’s what sold me—this cake is my go-to for birthdays and lazy Sundays. Bake it in a loaf pan for easy layering with whipped cream, or go full sheet cake for potlucks. (Yes, even on a Tuesday night.)
- Budget-Friendly Luxury: I’ve made this with store-brand butter and still gotten a cake that tastes like it cost twice as much. The Bob’s Red Mill flour stretches further than AP flour, and the sugar combo keeps costs down without sacrificing flavor. Leftovers? They disappear faster than I can say “second slice.”
Step-by-step instructions for bob's Red Mill 1:1 chocolate cake
Here's how to bake a rich, moist chocolate cake with coffee swirls and a buttery crust—every layer perfect.
Prepare the Coffee-Infused Fudge Swirl
In a small bowl, combine the 1 cup unsweetened cocoa powder, 2 tbsp instant espresso powder, 0.5 cup dark brown sugar, and 1 tbsp instant coffee granules. Gradually whisk in 1.5 cups whole milk until smooth—this creates a thick, vibrant fudge mixture. The coffee infusion deepens the chocolate flavor while adding subtle bitterness that balances sweetness.
Set the mixture aside and let it sit at room temperature while you prepare the cake batter. The fudge needs to be fully dissolved before swirling, so don't rush this step. If it thickens too much, whisk in 1-2 teaspoons of milk to restore smoothness. This fudge will become the decadent swirls running through your cake layers.
Cream Butter and Sugars for Maximum Fluffiness
In a stand mixer fitted with the paddle attachment, beat the 2 cups unsalted butter and 2.5 cups granulated sugar on medium speed for 4-5 minutes. You're looking for a pale, fluffy mixture that nearly doubles in volume—this incorporates air for a light, tender crumb. Stop occasionally to scrape down the sides of the bowl with a rubber spatula to ensure even mixing.
I press down gently on the butter-sugar mixture with a spatula during the first minute—this prevents it from curdling and ensures proper emulsification. The butter should be completely smooth with no graininess, and the mixture should look like thick, pale ribbon when the beaters are lifted. This is the foundation for your cake's texture, so take your time here.
Add Eggs and Dry Ingredients Alternately
Add the 6 whole large eggs, one at a time, mixing on low speed for 30 seconds after each addition. This gradual incorporation prevents the eggs from scrambling. After all eggs are incorporated, mix in the 2 tsp vanilla extract until fully combined.
In a separate bowl, whisk together the 3.5 cups Bob's Red Mill 1:1 baking flour, 1.5 tsp baking powder, and 1.5 tsp salt. With the mixer on low speed, alternately add the dry ingredients and 1.5 cups whole milk, beginning and ending with the dry ingredients. Mix just until combined—you should still see small flour streaks. Overmixing develops gluten, which makes the cake tough instead of tender.
Fold in Chocolate Chips and Prepare the Pan
Using a silicone spatula, gently fold in the 2 cups semisweet chocolate chips until evenly distributed. The chocolate will melt slightly from the warm batter, creating pockets of molten chocolate throughout each slice. Preheat your oven to 350°F while you prepare two 9-inch round cake pans. Grease the pans thoroughly with butter and line the bottoms with parchment paper.
Divide the batter evenly between the prepared pans. For the fudge swirl, use a spoon to create a well in the center of each cake layer. Pour half of the fudge mixture into the well of one pan and swirl gently with a knife to create marbled patterns. Repeat with the remaining fudge and batter in the second pan. Tap the pans gently on the counter to release any air bubbles.
Bake and Assemble the Layers
Bake the cakes for 30-35 minutes, or until a toothpick inserted into the center comes out clean. The edges should be set but the tops may still look slightly soft—they'll firm up as they cool. Rotate the pans halfway through baking for even browning. Let the cakes cool in their pans for 10 minutes, then transfer to a wire rack to cool completely.
Once cooled, level the tops if necessary using a serrated knife. For the buttercream, beat the 1.5 cups heavy whipping cream and 3 cups powdered sugar together until stiff peaks form. Frost the cooled cake layers between each assembly, then cover the entire cake with a final layer of buttercream. The contrast between the rich chocolate and creamy frosting makes every bite irresistible.
Pro Tips For Making Bob'S Red Mill 1 To 1 Chocolate Cake
- MEASURE FLOUR LIKE A PRO: The Bob’s Red Mill 1:1 flour packs differently than wheat flour—don’t scoop it straight from the bag. Spoon it into the cup, then level it off with a knife. I learned this the hard way when my first cake turned out dense and dry.
- CREAM BUTTER AND SUGAR UNTIL PALE: Skip the rush and beat the butter, granulated sugar, and brown sugar together for at least 3–4 minutes until the mixture is light and fluffy. The butter should look almost translucent—this isn’t just for texture, it dissolves more sugar for a richer cake.
- DON’T OVERMIX THE BATTER: Once you add the eggs and wet ingredients, mix just until combined. Overmixing develops gluten in the 1:1 flour, which makes the cake tough. Stop when there are no more streaks of flour—no need to overwork it.
- LET THE BATTER REST: After mixing, let the batter sit for 10–15 minutes before baking. This lets the flour hydrate fully and the flavors meld. I was skeptical at first, but it makes a noticeable difference in moisture and depth of flavor.
Make-ahead tips for leftovers
Prep Ahead Timeline
I recommend prepping the fudge swirl mixture the night before—it develops deeper coffee flavor when rested. Store it in an airtight container in the fridge, and whisk briefly before using to smooth any separation.
The buttercream can also be made a day ahead and stored in the refrigerator. Just re-whip it briefly before frosting for that perfect fluffy texture. 📅
Layer Storage Secrets
After baking and cooling, wrap each cake layer individually in plastic wrap, then place them in an airtight container. Store them at room temperature for up to 3 days or refrigerate for 5 days.
When ready to assemble, let the layers sit at room temperature for 30 minutes before frosting to prevent condensation. This keeps the cake perfectly moist and prevents soggy layers. ❄️
Freezing for Later
For long-term storage, freeze the fully assembled cake (unfrosted or with frosting) in an airtight container for up to 3 months. Thaw it overnight in the fridge, then bring to room temperature before serving. I like to wrap each layer separately in plastic wrap before freezing—this prevents freezer burn and makes slicing easier later. Just
Make-Ahead Frosting
The buttercream can be made 2 days in advance and stored in the fridge. When ready to use, let it sit at room temperature for 15-20 minutes before whipping again. For extra stability, add 1 tsp corn syrup when making the buttercream if you're storing it longer than 24 hours. This prevents graininess and keeps it perfectly smooth for spreading. 💫
Gift-Worthy Packaging
For gifting, wrap each frosted layer in plastic wrap, then place them in a sturdy box with a lid. Add a decorative ribbon and a handwritten note for a special touch. The cake stays fresh for 3 days at room temperature when packaged this way.
I like to include a small jar of extra fudge swirl mixture on the side—it’s a fun, unexpected treat for the recipient. 🎁
Cake Assembly Shortcut
If you're short on time, bake the layers a day ahead and store them in the fridge. Frost them the morning of serving, then decorate with chocolate shavings or fresh berries just before guests arrive.
The flavors actually improve after resting, so you won’t sacrifice taste for convenience. This is my go-to method for last-minute celebrations. ✨
Nutrition facts
Frequently asked questions
Can I substitute Bob's Red Mill 1:1 flour for regular all-purpose flour?
Yes! This recipe works perfectly with either flour. If using regular all-purpose flour, measure it the same way—spoon into the cup and level off. The Bob's Red Mill 1:1 version mimics all-purpose flour's performance, so texture and rise will be identical. For best results, keep all other ingredients exactly as written.
Why does the recipe call for both instant espresso powder and coffee granules?
The instant espresso powder infuses the cake batter with deep coffee flavor, while the coffee granules in the fudge swirl create those rich, marbled ribbons. The combination gives you both subtle coffee notes throughout the cake and dramatic visual swirls. If you only have brewed coffee, use 3 tbsp chilled instead of the instant powders.
How do I fix a cake that's cracked on top?
Cracking usually happens from overbaking or opening the oven too soon. If it happens, let the cake cool completely, then level the top with a serrated knife. Frost with extra buttercream to disguise any imperfections. For next time, check for doneness at 30 minutes—the cake should spring back when gently touched, not feel firm.
Can I make this cake gluten-free and vegan?
Use Bob's Red Mill 1:1 gluten-free flour and replace eggs with 6 tbsp flax eggs (6 tbsp ground flax + 18 tbsp water, mixed and rested for 5 minutes). For vegan buttercream, substitute the heavy cream with 1.5 cups coconut cream (chilled overnight) and use vegan powdered sugar. The texture will be slightly denser but still delicious.
How do I store leftovers to keep them moist?
Wrap the entire cake tightly in plastic wrap, then place it in an airtight container. Store at room temperature for 3 days or refrigerate for 5 days. To revive stale slices, warm them for 10 seconds in the microwave with a damp paper towel on top. The coffee-infused fudge keeps the cake moist longer than traditional chocolate cakes.