Classic Chocolate Fudge Cake

Classic Chocolate Fudge Cake
Servings: 12 Prep 10 mins Bake 400°F 15 mins


  • 1 cup all-purpose flour
  • 1 cup granulated sugar
  • 1/2 teaspoon baking soda
  • 1/2 cup water
  • 1/2 cup (1 stick) unsalted butter, cut into pieces
  • 1/2 cup unsweetened cocoa powder
  • 2 teaspoons instant espresso powder (optional; see Note)
  • 1/4 cup buttermilk
  • 1 egg, slightly beaten
  • 1 teaspoon vanilla extract
  • 1/4 cup (1/2 stick) unsalted butter
  • 1/4 cup unsweetened cocoa powder
  • 1/4 cup buttermilk
  • 1 cup confectioners sugar
  • 1 teaspoon vanilla extract
  • 1 cup walnuts, chopped

Make It


1. Heat oven to 400 degrees F. Grease 9-inch springform pan. In bowl, mix flour, sugar and baking soda.

2. In medium-size nonstick saucepan, combine water, butter, cocoa powder and espresso powder, if using. Bring mixture just to a boil, stirring constantly, over medium-high heat, about 2 minutes. Gradually stir in flour mixture until blended. Reduce heat to medium. In small bowl, whisk together buttermilk, egg and vanilla. Add to cocoa mixture in saucepan; stir vigorously for 1 minute or until well blended. Pour batter into prepared pan.

3. Bake in 400 degrees F oven 15 minutes or until top just begins to crack and center is still slightly moist when pierced with skewer. Transfer pan to wire rack.


4. In medium-size saucepan, combine butter, cocoa powder and buttermilk. Over medium-high heat, bring to a boil, stirring constantly, until blended. Stir in confectioners sugar, vanilla and walnuts; remove from heat.

5. While cake is still hot, pierce holes in top with skewer. Pour frosting over top. Keep piercing cake with skewer to create fudgy interior.

6. Transfer cake to serving plate. Remove sides of pan, letting frosting drip down sides of cake. Let stand until frosting is set, 15 minutes. Serve warm or at room temperature. (Can be prepared a day ahead; store at room temperature.)


  • Espresso powder is available from The Bakers Catalogue,

Nutrition Facts

Servings Per Recipe: 12; Amount Per Serving: cal. (kcal): 428, Fat, total (g): 31, chol. (mg): 80, sat. fat (g): 16, carb. (g): 38, fiber (g): 3, pro. (g): 5, sodium (mg): 73, Percent Daily Values are based on a 2,000 calorie diet.