Grandad Danner's Favorite Peanut Butter Cookies Recipe | Epicurious

Ingredients

• 1 1/4 cups unbleached all-purpose flour
• 1/2 teaspoon baking soda
• 1/2 teaspoon baking powder
• 1/2 teaspoon fine salt
• 8 tablespoons (1 stick) unsalted butter, at room temperature
• 3/4 cup smooth peanut butter, at room temperature
• 1/2 cup firmly packed dark brown sugar
• 1/2 cup firmly packed light brown sugar
• 1 organic large egg, at room temperature
• 1 teaspoon vanilla extract
• 1 cup peanut butter chips
• 1/4 cup granulated sugar (optional)