Swirly PB & C Bars Recipe - Tablespoon.com

Ingredients

• 1/2 cup butter
• 1/2 cup sugar
• 1/2 cup brown sugar, packed
• 1/3 cup creamy peanut butter
• 1 large egg
• 1/2 teaspoon soda
• 1/2 teaspoon salt
• 1 1/2 cups flour
• 1 cup peanut-butter and chocolate swirl baking chips (or milk chocolate or semi-sweet)
• 1 1/2 cup powdered sugar
• 1/4 cup creamy peanut butter
• 3 tablespoons baking cocoa
• 4 tablespoons milk