Created by TrixieBell on July 3, 2012
Step 1: Preheat oven to 350° F. Butter and flour three 9-inch round cake pans with 1 1/2-inch-high sides.
Step 2: Place water, chocolate, and coffee powder in a small, heavy bottomed saucepan and place over low heat, stirring occasionally until chocolate melts and espresso powder is dissolved. Remove from heat and let cool.
Step 3: While the chocolate cools, beat the sugar and butter together until well blended. Beat in the eggs and vanilla and then beat in the cooled chocolate mixture.
Step 4: In a medium bowl, mix flour and baking soda with a whisk. Add flour mixture to butter mixture and beat just until combined.Beat in sour cream.
Step 5: Divide batter evenly among prepared pans. Bake cakes for 25-30 minutes until they begin to pull away from sides of pans and a toothpick inserted into the center comes out clean. You should gently rotate the pans half way through baking to ensure that they all bake evenly.
Step 6: Transfer pans to racks and cool for 10 minutes. Turn cakes out onto racks and cool completely before frosting.