Total Time
1hr
Prep 20 mins
Cook 40 mins

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Ingredients Nutrition

Directions

  1. Preheat oven to 400 degrees F (200 degrees C). Grease and flour a 9x13 inch pan.
  2. In a saucepan, combine 1/2 cup margarine, oil, 4 tablespoons cocoa and water. Bring to a boil over medium high heat, stirring often. Set aside.
  3. In a large bowl, sift together the flour and sugar. Make a well in the center, and pour in the cocoa mixture. Stir until smooth. Mix in the buttermilk, 2 teaspoons vanilla, cinnamon, baking soda and eggs.
  4. Pour batter into prepared pan. Bake in the preheated oven for 20 minutes, or until a toothpick inserted into the center of the cake comes out clean. Allow to cool slightly before frosting.
  5. For the Frosting: In a large saucepan, combine 1/2 cup margarine, 4 tablespoons cocoa and 5 tablespoons milk. Bring to a boil, stirring often. Remove from heat. Stir in confectioners' sugar, peanut butter and 1 1/2 teaspoons vanilla. Beat until the icing is blended. Pour over warm cake.

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