Microwave Texas Brownies
["2 c. all-purpose flour", "2 c. sugar", "1 stick margarine", "1/2 c. shortening", "1/4 c. cocoa", "1/2 c. buttermilk or 1/2 c. milk plus 1 Tbsp. vinegar", "2 eggs", "1 tsp. baking soda", "1 tsp. vanilla flavoring", "1/4 c. brewed coffee or water"]
["Mix sugar and flour in a large bowl.", "In microwave-safe dish, combine butter, shortening, coffee or water and cocoa.", "Microwave on High for 2 minutes or to boiling.", "Pour boiling mixture over flour mixture, stir and add buttermilk, eggs, baking soda and vanilla.", "Pour in 9 x 11-inch pan dish.", "Microwave at Medium-high for 18 minutes, turning dish every 4 to 5 minutes until done.", "(May look soft on surface.)", "Top with Chocolate or Caramel Frosting."]
["flour", "sugar", "margarine", "shortening", "cocoa", "buttermilk", "eggs", "baking soda", "vanilla flavoring", "coffee"]