"This peanut butter sheet cake recipe is the perfect dessert to feed a crowd! Peanut butter cake with peanut butter frosting...."
INGREDIENTS
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1/2 cup peanut butter
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1 cup water
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2 sticks margarine
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2 cups flour
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2 cups sugar
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1 tsp salt
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1 tsp baking soda
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2 eggs
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1/2 cup buttermilk
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1 stick margarine
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1/2 cup peanut butter
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6 Tbs buttermilk
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1 tsp vanilla
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4 cups powdered sugar