Mexican Chocolate Cake - cooking recipe

Ingredients

1/2 c. margarine or butter
1/2 c. cooking oil
2 sq. (2 oz.) unsweetened chocolate or 4 Tbsp. cocoa
1 c. water (I use milk)
2 c. flour
1 tsp. baking soda
2 c. sugar
1/2 c. sour milk or 1 1/2 tsp. vinegar in 1/2 c. milk
2 eggs, beaten
1 tsp. cinnamon
1 tsp. vanilla (I use 2 tsp.)

Preparation

Combine margarine, oil, chocolate and water or milk in saucepan; heat until chocolate is melted.
Sift flour, baking soda, sugar and cinnamon.
In large bowl, combine ingredients from saucepan with sour milk, vanilla and eggs.
Blend in flour mixture. Pour batter into greased 9 x 13 x 2-inch cake pan.
Bake in 350\u00b0 oven for 40 to 50 minutes or until cake is done.
Frost while cake is warm with Mexican Chocolate Frosting.