INGREDIENTS
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2 cups/256 grams all-purpose flour
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2 teaspoons baking powder
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4 teaspoons baking soda
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1 pound/454 grams (4 sticks) salted butter, at room temperature
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2/3 cup/180 grams creamy peanut butter, preferably Skippy
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1 cup/201 grams granulated sugar
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1 cup/200 grams firmly packed light brown sugar
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2 large eggs
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1 1/2 teaspoons vanilla extract
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1/3 cup/47 grams coarsely chopped peanuts
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2 1/2 cups/223 grams quick-cooking oats
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1/2 pound/227 grams (2 sticks) salted butter, at room temperature
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1 cup/270 grams creamy peanut butter, preferably Skippy
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3 1/3 cups/410 grams confectioners' sugar