method

Preheat oven to 350 with rack in the center. Spray two 8" round cake pans.

Whisk flour, sugar, cocoa, baking soda and salt together in a large mixing bowl.

Combine water, oil, instant coffee, and vanilla in a large measuring cup. Add to the dry ingredients and whisk until combine.

Divide batter between the two pans, then bake until toothpick inserted in center comes out clean, 35- 40 min.

Chocolate Icing
1 stick unsalted butter
1 1/2 cups sugar
1 1/4 cups unsweetened cocoa powder
1 pinch salt
1 1/4 cups heavy whipping cream
1/4 cup sour cream

To make icing:
Melt butter in large saucepan over medium heat. Stir in sugar, cocoa, and salt. Mixture will be thick and grainy.

Combine heavy cream, sour cream and ins in a large measuring cup, mixing until smooth. Gradually add cream mixture to chocolate until blended and smooth. Cook until the sugar has dissolved and the mixture is smooth.

Take mixture off the heat. Cool at room temperature until spreadable,icing will be c