"To make these easy bar cookies, stir peanut butter and peanuts into a cake mix batter and top the bars with chopped peanut butter cups...."
INGREDIENTS
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1 box (18.25 ounces) French vanilla cake mix see savings
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1/2 cup (1 stick) butter, melted see savings
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1 egg see savings
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1 cup smooth peanut butter see savings
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1/2 cup buttermilk see savings
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3/4 cup unsalted peanuts, chopped see savings
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1 cup (about 18) mini chocolate-covered peanut butter cups, coarsely chopped see savings