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peanut butter chocolate bars, cut and served
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4.85 from 19 votes

Peanut Butter Chocolate Bars

After nearly a year of testing, I’m officially ready to share my ‘better than the Lunch Lady's’ Peanut Butter Bars! Capped with chocolate frosting and full of oats +  peanut butter, these baked bars simply cannot be beat!
Prep Time20 minutes
Cook Time20 minutes
Cooling Time45 minutes
Course: Dessert
Keyword: Peanut Butter Bars
Servings: 24 squares
Author: Karli Bitner

Ingredients

Peanut Butter cookie Layer

  • 1/2 cup (111g) salted butter
  • 1 cup (246g) peanut butter
  • 1/2 cup (115g) granulated sugar
  • 1/2 cup (123g) brown sugar
  • 2 eggs
  • 2 tsp vanilla
  • 1 1/2 cups (228g) all-purpose flour
  • 1 cup (100g) old fashioned oats
  • 1/2 tsp salt
  • 1 tsp baking soda

Chocolate Icing

  • 1/2 cup (111g) salted butter
  • 4 tbsp cocoa powder
  • 6 tbsp milk
  • 1 lb powdered sugar
  • 1 tsp vanilla

Instructions

  • Preheat oven to 350°.
  • Cream together peanut butter, butter and sugars until light and fluffy with either a stand mixer or electric hand mixer.
  • Add in the eggs and vanilla, mix until just combined.
  • Add in the flour, old fashioned oats, salt and baking soda.
  • Mix until the dough forms. Dough will be slightly sticky.
  • Spread and press the dough into the bottom of a greased 9x13 pan.
  • Bake at 350° for 18-20 minutes.
  • Once the peanut butter bars come out of the oven, make the frosting.
  • To make the frosting, melt the butter, cocoa powder and milk in a medium saucepan pan over medium heat. Bring to a soft boil.
  • Once boiling, remove from heat and whisk in the powdered sugar and vanilla.
  • Let the icing cool for 10 minutes. Stir the icing to break up the crusting on top and then pour over the peanut butter bars.
  • Allow to cool completely before cutting. (You can put it in fridge to speed up the process, if desired.)

Nutrition

Calories: 290kcal | Carbohydrates: 39g | Protein: 5g | Fat: 14g | Saturated Fat: 6g | Cholesterol: 34mg | Sodium: 227mg | Potassium: 120mg | Fiber: 1g | Sugar: 28g | Vitamin A: 262IU | Calcium: 21mg | Iron: 1mg
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