"This easy, decadent, very peanut buttery cake is a showstopper and peanut butter fans will go nuts for it. The cake is soft and tender with fluffy peanut butter frosting that's smooth, creamy, and rich. The cookies inside the cake soften while baking but do retain a light crunch which is a great contrast to the silky frosting. Make the cake for your next party or event and you'll be a superstar...."
INGREDIENTS
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one 16.50-ounce box yellowcake mix,plus ingredients to make the cake (likely 3 egg whites, water, and oil)
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18 Nutter Butter cookies, each chopped into 6 pieces; plus about 8 more cookies for garnishing
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1 1/3 cups creamy peanut butter
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1/2 cup unsalted butter, softened
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2 cups confectioners' sugar
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1 teaspoon vanilla extract
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about 1/4 cup cream or milk,plus more if necessary for consistency