Texas Brownies
["2 c. all-purpose flour", "2 c. granulated sugar", "1/2 c. butter or margarine", "1/2 c. shortening", "1 c. strong brewed coffee or water", "1/4 c. dark unsweetened cocoa", "1/2 c. buttermilk", "2 eggs", "1 tsp. baking soda", "1 tsp. vanilla", "2 Tbsp. dark cocoa", "1/4 c. unsifted powder", "1/2 c. butter or margarine (for frosting)"]
["In a large mixing bowl combine the flour and the sugar.", "In a heavy saucepan combine butter, shortening, coffee or water and cocoa.", "Stir and heat to boiling.", "Pour boiling mixture over the flour and sugar in the bowl.", "Add the buttermilk, eggs, baking soda and vanilla.", "Mix well, using a wood spoon or high speed on electric mixer.", "Pour into a well buttered 17 1/2 x 11-inch jelly roll pan.", "Bake at 400\u00b0 for 20 minutes or until brownies test done in the center.", "While brownies bake, prepare the frosting.", "In a saucepan combine butter, cocoa and milk.", "Heat to boiling; keep stirring.", "Mix in the powdered sugar and vanilla until frosting is smooth."]
["flour", "sugar", "butter", "shortening", "coffee", "cocoa", "buttermilk", "eggs", "baking soda", "vanilla", "dark cocoa", "unsifted powder", "butter"]