Peanut Butter Cookies

Ingredients

• 1 cup creamy peanut butter
• 1/2 cup butter, softened
• 1/4 cup granulated sugar
• 3/4 cup packed brown sugar
• 1 large egg
• 1 teaspoon vanilla extract
• 1 1/2 cups all-purpose flour
• 1 teaspoon baking soda
• 1/4 teaspoon salt
• Peanut butter chips, optional