Source is my mom. I have no idea where she got this recipe but she's had it for 20-30 years if not longer. One of Anthony's coworkers is going to go to school in Seattle and his going away party is today. I was told there would be BBQ food so I thought this dessert goes with a southern theme of food : ) and it feeds tons of people
Texas Sheet Cake
2 cups flour
2 cups sugar
2 sticks margarine
6 tablespoons cocoa
1 cup water
1 teaspoon baking soda
1/2 cup buttermilk
1/2 teaspoon salt
1/2 teaspoon cinnamon
1/2 teaspoon vanilla
Sift together flour and sugar together in a large mixing bowl. In a small pan, combine margarine, cocoa, and water. Bring to a rapid boil. Then pour over flour and sugar. Mix well. Combine buttermilk and baking soda in measuring cup. Lightly beat eggs. Add buttermilk-soda and eggs to mixing bowl. Mix well. Add salt, cinnamon, and vanilla. Mix well. Pour into a greased and loured 16 X 11 X 1 inch jellyroll pan. Bake 20 minutes in a preheated 350 degree oven.
FROSTING for Texas Sheet Cake
1 stick margarine
5 tablespoons cocoa
6 tablespoons cooked black coffee
1 pound box of powdered sugar
1 teaspoon vanilla
1 cup chopped pecans or walnuts
Combine margarina, cocoa, and coffee in a saucepan. Bring to a boil. Pour over powdered sugar in a mixing bowl. Add vanilla. Beat until smooth. Add nuts and mix. Spread on warm cake. (Make this frosting while the cake is baking and put on cake a few minutes after it is out of the oven)
I used sticks of butter because I just dont normally buy margarine
I used a 12 X 17 X 1 inch pan because my smaller pan didn't have the measurements on it. I did take my cake out about 3 minutes early because it was done due to being thinner in this pan.
Lastly, we do not drink coffee or even have a coffee maker. In college when I would make this cake my awesome neighbor Nick lived upstairs and would make a pot of coffee for me to use in this recipe. Sadly I dont know any of my neighbors well enough to ask for a cup of coffee so I used some instant suisse mocha. The coffee flavor will not be as strong because of this.