Instructions: Heat Dr. Pepper with margarine, but do not boil. Set aside. Sift together flour, sugar, cinnamon, salt, and cocoa. Beat together eggs, buttermilk, vanilla, and baking soda. Add hot Dr. Pepper mixture to dry ingredients.

Stir in egg mixture, and blend well. Pour into greased and floured 15x10-inch sheet cake pan. Bake at 350 deg. for 25 minutes. For frosting: About 5 minutes before cake is done, heat Dr. Pepper, margarine, and cocoa.

Stir in powdered sugar, pecans, and vanilla. Spread frosting on while cake is still hot.

If you would like to email yourself the recipe for later use, or share the recipe with your friends or family, enter the email addresses below and this recipe will be emailed to you and others as well.