INGREDIENTS
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1 1/4 cups all-purpose flour 3/4 teaspoon baking soda 1/2 teaspoon baking powder 1/4 teaspoon salt 1/2 cup unsalted butter, softened 1 cup creamy peanut butter 3/4 cup granulated sugar 1/2 cup firmly packed light brown sugar 1 large egg 1 tablespoon