INGREDIENTS
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For the cupcakes:
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1 box yellow cake mix, like Betty Crocker Super Moist
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1 1/4 cups water
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3/4 cup creamy peanut butter
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1/4 cup vegetable oil
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3 eggs
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For the frosting:
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1/2 cup heavy cream
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6 ounces cream cheese
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1/3 cup confectioners' sugar
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1/2 teaspoon salt
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1 cup creamy peanut butter
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1/2 teaspoon vanilla extract
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For the filling:
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1 cup grape or strawberry jam