Go Back
+ servings
chocolate and white chocolate peanut butter oatmeal squares on plate
Print Recipe
No ratings yet

Easy Peanut Butter Squares Recipe

Peanut Butter Squares are a layered dessert of peanut flavored oatmeal cake, with a layer of melted chips, and a drizzle of peanut icing.
Prep Time10 mins
Cook Time20 mins
Total Time30 mins
Course: Dessert
Cuisine: American
Keyword: peanut butter
Servings: 15
Calories: 366kcal
Author: Janna/Fit As A Fiddle Life


  • 1 9 x 13-inch baking dish



  • 1/2 cup olive oil
  • 1/2 cup brown sugar packed
  • 1/2 cup sugar
  • 2 lg eggs
  • 1/2 cup peanut butter
  • 3/4 tsp baking soda
  • 1 tsp vanilla
  • 1 1/2 cup flour all purpose
  • 1 1/2 cup oats old fashioned
  • 3/4 cup chocolate chips
  • 3/4 cup white chocolate chips


  • 1/2 cup powdered sugar
  • 1/4 cup peanut butter
  • 3 tbsp milk 1 tbsp more as needed to drizzle


  • Preheat oven to 350F. Spay a 9 x 13 inch baking pan with cooking spray and set aside.
  • Combine brown sugar, sugar, and olive oil in a bowl. Add in eggs, 1/2 cup peanut butter, baking soda, and vanilla. Mix well. Blend in flour and oats. Press peanut butter oat mixture into bottom of prepared baking pan. Bake on the bottom rack of oven for 20 minutes.
  • Remove baking pan from oven and spread chips evenly over cake layer. Let sit for 5 minutes and then spread melted chips evenly over cake layer. Set aside to cool.
  • Combine powdered sugar and peanut butter. Mix in milk until icing is the consistency to drizzle. Place icing in a zip lock bag, snip a corner and drizzle over chip layer.
  • Cool completely and cut into bars.


Serving size = 3 x 3 inch bar.


Calories: 366kcal | Carbohydrates: 45g | Protein: 6g | Fat: 19g | Saturated Fat: 5g | Polyunsaturated Fat: 3g | Monounsaturated Fat: 10g | Trans Fat: 0.003g | Cholesterol: 4mg | Sodium: 125mg | Potassium: 156mg | Fiber: 2g | Sugar: 28g | Vitamin A: 6IU | Vitamin C: 0.1mg | Calcium: 40mg | Iron: 1mg