INGREDIENTS
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For the Brownie Cupcakes
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18-ounce Ghirardelli brownie mix plus the ingredients listed on the box
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18 miniature peanut butter cups, divided use
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For the Peanut Butter Frosting
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3/4 cup (1 1/2 sticks) unsalted butter, room temperature
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1/2 cup creamy panut butter
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2 cups powdered sugar, sifted
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1 teaspoon vanilla extract
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For the Chocolate Topping
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1/4 cup heavy cream
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1/4 semisweet chocolate chips