Frosted Peanut Butter Cookie Bars
Peanut butter cookie bars are topped with a layer of whipped peanut butter frosting, then a layer of chocolate frosting in this tasty treat that's perfect for parties and potlucks.
Servings: 2 -3 dozen
Calories: 592kcal
Ingredients
For the cookies
- 1 cup butter softened
- 1 cup white sugar
- 1 cup brown sugar
- 2 eggs
- 1 teaspoon vanilla
- 3/4 cup peanut butter creamy or crunchy
- 1 teaspoon baking soda
- 1/2 teaspoon salt
- 2 cups flour
- 2 cups quick oats
For the peanut butter frosting
- 1 cup creamy peanut butter
- 1/3 cup powdered sugar
For the chocolate frosting
- 1/2 cup butter softened
- 1/2 cup milk
- 1 teaspoon vanilla
- 6 tablespoons cocoa powder
- 5-6 cups powdered sugar
Instructions
- Preheat oven to 350 degrees. Lightly grease a 10x15 inch jelly roll pan.
- With an electric mixer, beat together the butter and sugars until light and fluffy. Add the remaining ingredients for the cookies and mix well.
- Press the dough into the prepared pan. Bake for about 15 minutes, or until the edges are just brown and a toothpick inserted in the center comes out clean.
- Transfer the bars to a cooling rack to cool completely.
- Meanwhile, beat 1 cup peanut butter and 1/3 cup powdered sugar until smooth. Set aside.
- For the chocolate frosting, beat the butter, milk, vanilla, cocoa and powdered sugar with an electric mixer until smooth and fluffy. Add additional powdered sugar, or milk, as needed to reach desired consistency.
- Frost the cooled cookie bars with the peanut butter mixture. Refrigerate for a few minutes to set, then carefully spread the chocolate frosting over the peanut butter layer. Cut into bars and serve.
Nutrition
Serving: 1g | Calories: 592kcal | Carbohydrates: 114g | Protein: 5g | Fat: 15g | Saturated Fat: 6g | Polyunsaturated Fat: 7g | Cholesterol: 31mg | Sodium: 204mg | Fiber: 1g | Sugar: 102g