Originally from an Austin, TX community cookbook. Family favorite.
Combine in saucepan cocoa, butter, oil, and water.
Bring to a boil, stirring; let cool.
Combine sugar and flour in a large bowl.
Pour cocoa mixture, when cooled, over flour and sugar; and beat until smooth.
Combine buttermilk, eggs, soda, cinnamon and vanilla; then beat into above mixture.
Grease and flour a 13x9 inch pan; bake at 400 degrees for 35-40 minutes.
Frosting: Start 10 minutes before baking is done.
Combine frosting ingredients except for confectioner's sugar in a bowl, mix.
Add confectioner's sugar; stir well, then beat until thick.
Spoon frosting over hot cake.
Top with nuts if desired.
The Prepka App Is Ready
All your recipes at your fingertips — in the Progressive Web App