peanut butter cookie recipe

**Ingredients:** - 1/2 cup unsalted butter, softened - 1/2 cup granulated sugar - 1/2 cup packed brown sugar - 1/2 cup creamy peanut butter - 1 large egg - 1 teaspoon vanilla extract - 1 1/4 cups all-purpose flour - 1/2 teaspoon baking powder - 1/2 teaspoon baking soda - 1/4 teaspoon salt