Texas Sheet Cake

Cake:
2 cups sugar
2 cups flour
1/4 cup cocoa
1 teaspoon baking soda
1 teaspoon cinnamon
1/2 cup unsalted butter, melted
1/2 cup buttermilk
1/2 cup canola oil
1 cup water
2 eggs, lightly beaten
1 teaspoon vanilla

Frosting:
1/4 cup plus 2 tablespoons milk
1/4 cup cocoa
1/2 cup unsalted butter
1 pound sifted powdered sugar (about 4 cups)
1 teaspoon vanilla
1 cup chopped pecans (optional)

Preheat oven to 400. Grease 12x17 jelly roll pan. Sift sugar, flour, cocoa, soda, and cinnamon; set aside. Mix wet ingredients with dry ingredients, stirring until smooth.

Pour in pan, bake for 20 minutes.

For frosting, mix milk and cocoa in heavy saucepan (stir, stir), add butter and stir until butter melts, remove from heat, gradually stir in sugar and vanilla until smooth, add pecans.

When cake is out of oven, spread frosting over hot cake.

Let cool and serve.