For National Chocolate Cake Day (yesterday)

This is a recipe I found on allrecipes.com. It was delicious and super moist. Greg said it was the best chocolate cake ever.

Dark Chocolate Cake

Ingredients
2 cups boiling water
1 cup unsweetened cocoa powder
2 3/4 cups all-purpose flour
2 teaspoons baking soda
1/2 teaspoon baking powder
1/2 teaspoon salt
1 cup butter, softened
2 1/4 cups white sugar
4 eggs
1 1/2 teaspoons vanilla extract

Directions

1. Preheat oven to 350 degrees F (175 degrees C). Grease 3 - 9 inch round cake pans (or fewer or different sizes). In medium bowl, pour boiling water over cocoa, and whisk until smooth. Let mixture cool. Sift together flour, baking soda, baking powder and salt; set aside.
2. In a large bowl, cream butter and sugar together until light and fluffy. Beat in eggs one at time, then stir in vanilla. Add the flour mixture alternately with the cocoa mixture. Spread batter evenly between the 3 prepared pans.
3. Bake in preheated oven for 25 to 30 minutes. Allow to cool.

Sour Cream Chocolate Frosting

Ingredients
1 cup semisweet chocolate chips
4 tablespoons butter
1/2 cup sour cream
1 teaspoon vanilla extract
1/4 teaspoon salt
2 3/4 cups confectioners' sugar (we halved the confectioner's sugar - it was already very sweet and more frosting than we needed for the cakes)

Directions
Melt chocolate and the butter together. Let cool and blend in the sour cream, vanilla, and salt. Gradually add the confectioner's sugar until the frosting is of spreading consistency, beat well (keep beating the whole time, it may look lumpy but if you keep beating it will smooth itself out).