Texas Sheetcake Brownies

Texas Sheetcake Brownies
2 c flour
2 c sugar
1 stick butter
1/2 c shortening
2 TBSP Cocoa
1 c water
1/2 c buttermilk
1/4 t salt
1 t baking soda
1 TBSP cinnamon
2 eggs

Frosting:
1 stick butter
6 TBSP milk
4 TBSP cocoa
1 lb. powder sugar
1 tsp vanilla extract

Preheat oven to 400 degrees.  Combine flour and sugar in a bowl.  In a saucepan mix butter, shortening, cocoa, and water.  Bring to a boil.  Pour over flour and sugar mixture.  Stir in buttermilk, salt, baking soda, cinnamon, and eggs.  Beat together.  Pour into greased sheet cake pan.  Bake 20 minutes or until toothpick comes out clean. Put frosting on warm cake.  Serve warm. 

I got this recipe from my best friend a million years ago.  This was our go-to recipe when we wanted a snack.  We would whip up a batch of these brownies and literally eat an entire pan and 1/2 gallon of milk in 1 setting.  Ahhh, wish I still had a metabolism like that.  Enjoy these, but beware that you might end up eating the entire pan:)