Chocolate Cake
["1 3/4 c. all-purpose flour", "2 c. sugar", "3/4 c. cocoa", "2 tsp. baking soda", "1 tsp. baking powder", "1 tsp. salt", "2 eggs", "1 c. strong black coffee*", "1 c. buttermilk or sour milk**", "1/2 c. vegetable oil", "1 tsp. vanilla"]
["*May be made with 2 teaspoons instant coffee and 1 cup boiling water."]
["flour", "sugar", "cocoa", "baking soda", "baking powder", "salt", "eggs", "black coffee", "buttermilk", "vegetable oil", "vanilla"]