Cracker Barrel Double Fudge Coca-Cola Cake

1 c. Coca-cola
1/2 c. oil
1 stick margarine
3 T. cocoa
2 c. sugar
2 c. flour
1/2 tsp. salt
2 eggs
1/2 c. buttermilk
1 tsp. baking soda
1 tsp. vanilla

In a saucepan, bring Coca-Cola, oil, margarine and cocoa to a boil; mix the sugar, flour and salt, Pour in the boiling liquid and beat well. Add the eggs, buttermilk, soda and vanilla and beat well. Pour into a greased and floured sheet cake pan and bake at 350 degrees for 20-25 minutes.

Frosting:
1/4 lb. margarine
3 T. cocoa
6 T. cream or milk
1 tsp. vanilla
1/2 to 1 c. pecans chopped
1 lb. confectioners' sugar

In a saucepan, combine butter, cocoa and milk and heat until the butter melts. Beat in the remaining ingredients, and spread on the hot cake. Cool and cut.