Sour Cream Chocolate Cake
Dissolve cocoa in water; let stand until cool. In a large mixing bowl, cream shortening and sugar until light and fluffy. Add eggs, one at a time, beating well after each. Add vanilla. Whisk the flour, baking soda, baking powder and salt; add to creamed mixture alternately with sour cream, beating well. Add cocoa mixture; beat well.
Bake for 25-35 minutes or until a toothpick inserted near the center comes out clean. Cool for 10 minutes before removing from pans to wire racks to cool completely.
In a heavy saucepan, melt chocolate chips and butter over low heat; stir until smooth. Remove from the heat; cool for 5 minutes. Place in a large mixing bowl; add sour cream and vanilla; beat until blended. Add confectioners' sugar; beat until light and fluffy.