"Peanut Butter Cup Cookie Bars can be stored in an airtight container at room temperature for up to 2 days...."
INGREDIENTS
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1 cup all-purpose flour 1/2 teaspoon baking powder 1/4 teaspoon baking soda 1/2 teaspoon salt 1/3 cup unsalted butter, melted 1 cup packed light brown sugar 1 large egg 2 teaspoons pure vanilla extract 1 cup mini peanut butter cups For the Chocolate-