If you’re craving a rich, moist chocolate cake without the hassle of multiple bowls and complicated steps, this one-bowl chocolate cake recipe is exactly what you need. Deeply chocolatey, tender, and topped with a silky chocolate frosting, this cake comes together with minimal cleanup and maximum flavor — perfect for birthdays, weeknight cravings, or any occasion that calls for chocolate.

This foolproof recipe uses simple pantry staples and one mixing bowl, making it ideal for beginner bakers and busy home cooks alike. The secret to its incredibly moist crumb? Hot coffee or hot water, which deepens the chocolate flavor and keeps the cake soft for days.
Why You’ll Love This One-Bowl Chocolate Cake Recipe
- Only one bowl needed — minimal cleanup
- Deep, rich chocolate flavor in every bite
- Incredibly moist texture that stays fresh for days
- Quick and beginner-friendly with simple steps
- Perfect for layering, cupcakes, or a simple sheet cake
Recipe Overview
| Detail | Info |
|---|---|
| Prep Time | 15 minutes |
| Cook Time | 35 minutes |
| Total Time | 50 minutes |
| Servings | 10 slices |
| Calories | 340 kcal per slice |
| Difficulty | Easy |
| Cuisine | American |
| Course | Dessert |
Ingredients
For the Chocolate Cake
- 2 cups (250g) all-purpose flour
- 2 cups (400g) granulated sugar
- ¾ cup (65g) unsweetened cocoa powder
- 2 teaspoons baking soda
- 1 teaspoon baking powder
- 1 teaspoon salt
- 2 large eggs, room temperature
- 1 cup (240ml) buttermilk, room temperature
- ½ cup (120ml) vegetable oil
- 2 teaspoons pure vanilla extract
- 1 cup (240ml) hot coffee or hot water
For the Chocolate Frosting
- ½ cup (115g) unsalted butter, softened
- ⅔ cup (55g) unsweetened cocoa powder
- 3 cups (360g) powdered sugar
- ⅓ cup (80ml) milk
- 1 teaspoon vanilla extract
Instructions
Step 1: Prepare the Oven and Pan
Preheat your oven to 350°F (175°C). Grease and flour a 9-inch round cake pan, or line it with parchment paper.
Step 2: Combine the Dry Ingredients
In a large mixing bowl, whisk together the flour, sugar, cocoa powder, baking soda, baking powder, and salt until well combined.
Step 3: Add the Wet Ingredients
Add the eggs, buttermilk, vegetable oil, and vanilla extract to the dry ingredients. Mix on medium speed for about 2 minutes until smooth.
Step 4: Stir in the Hot Coffee
Carefully stir in the hot coffee or hot water. The batter will be thin — this is normal and results in a moist cake.
Step 5: Bake the Cake
Pour the batter into the prepared pan. Bake for 30–35 minutes, or until a toothpick inserted into the center comes out clean.
Step 6: Cool the Cake
Let the cake cool in the pan for 10 minutes, then transfer it to a wire rack to cool completely before frosting.
Step 7: Make the Chocolate Frosting
Beat the softened butter until creamy. Add the cocoa powder and mix well. Gradually add the powdered sugar, alternating with the milk, and beat in the vanilla extract until light and fluffy.
Step 8: Frost and Serve
Spread the chocolate frosting evenly over the cooled cake. Slice and serve.
Tips for the Perfect Chocolate Cake
- Use hot coffee instead of water for a deeper, more intense chocolate flavor (it won’t taste like coffee).
- Don’t skip the buttermilk — it keeps the crumb soft and tender.
- The batter will look thin; that’s exactly what makes this cake so moist.
- Let the cake cool completely before frosting to prevent the frosting from melting.
Storage Instructions
Store the chocolate cake in an airtight container at room temperature for up to 3 days, or refrigerate for up to a week. It also freezes well, tightly wrapped, for up to 3 months.
Frequently Asked Questions
Can I make this into cupcakes? Yes, divide the batter into a lined muffin tin and bake for 18–20 minutes.
Can I use water instead of coffee? Yes, hot water works fine if you prefer to skip the coffee — the cake will still be moist and chocolatey.
Can I make this cake in two layers? Yes, divide the batter between two 8-inch round pans and reduce the baking time to about 25–28 minutes.
This one-bowl chocolate cake recipe proves that rich, moist, and utterly delicious chocolate cake doesn’t need to be complicated — just one bowl and a few simple steps.