Cookies/ Desserts

Peanut Butter Bars

Classic Peanut Butter Bars with thick layer of chocolate. An easy peanut butter cookie bar recipe that’s quick to put together for a delicious dessert. This old fashioned dessert square is a school lunch lady copycat recipe just like these Peanut Butter Cheerio Bars.

Easy Peanut Butter Bars - A stack of three peanut butter bars served on a plate. Each bar is topped with a thick layer of chocolate.

Quick 35 minute peanut butter buckeye cookie bars with a rich peanut butter base and fudgy semi sweet chocolate chip topping. A traditional dessert bar that’s perfect to bake for any occasion, birthday parties, and the Christmas cookie holiday season.

Peanut butter chocolate bars have been around forever and there are dozens of variations of this recipe but I always come back to making this one for it’s exceptional flavor. This recipe was always the center of attention growing up and they are super simple to make with just a few staple pantry ingredients like peanut butter, chocolate, butter, flour, and sugar which makes it a great recipe to make homemade from scratch last minute. Shared warm from the oven, it truly is rich dessert that you’ll come back to making time and time again.

Other variations on the recipe may include oatmeal, graham crackers, nuts, and chocolate chips mixed into the base, but this recipe doesn’t need the extra ingredients.

Peanut Butter Cookie Bars - Peanut Butter square served on a plate with chocolate chips to the side. A yellow fork and more dessert squares in the background.

HOW TO MAKE HOMEMADE PEANUT BUTTER BARS

  1. Cream peanut butter, butter, and sugar.
  2. Mix in vanilla extract and egg.
  3. Slowly mix in flour, baking soda, and salt.
  4. Spread into a 9 x 13 baking dish.
  5. Bake in 350°F oven for 25 minutes.
  6. Melt semi sweet chocolate chips and spread on top.

A classic recipe with better flavor

A thick and chewy bar with exception peanut butter flavor in each bite. With more peanut butter in each bite and the correct ratio of ingredients, each bite will taste like pure bliss. The perfect combination of peanut butter and chocolate in one cookie bar doesn’t get any better than these revised chocolate peanut butter bars.

Peanut Butter Cookie Bars - Soft and thick Peanut Butter Chocolate Squares with a decadent layer of chocolate topping. A quick and easy dessert recipe to make from scratch.

PEANUT BUTTER COOKIE BAR INGREDIENTS

■ PEANUT BUTTER: Use a peanut butter brand you like for the best tasting results. I prefer Skippy. NOTE: A crunchy peanut butter or smooth peanut butter may be used in the recipe.

■ CHOCOLATE: Semi sweet chocolate chips and peanut butter are the perfect combination. I melt mine on the stovetop with a little milk then spread it across the bars once it’s warm and smooth.

■ BUTTER: A classic baking staple. Use a good quality butter for the best flavor.

■ SUGAR: A little bit of sweetness adds great flavor to this rich dessert.

■ FLOUR: The dough will be mix up thick once flour is added resulting in a sturdy cookie base. Simply use a spatula or your hands to spread it into a casserole dish.

Peanut Butter Bars - Squares served on a white pottery plate with chocolate chips to the right. A bite mark taken from the corner. A golden brown peanut butter cookie base with a thick layer of chocolate melted on top.

COOKIE BAR TIPS & QUESTIONS

Can I freeze the cookie bars? Yes. Simply bake, top with melted chocolate and allow to cool in the pan. Next, cut into squares and place in an air-tight bag. Store for up to 3 months.

FLAVORFUL ADDITIONS

  • butterscotch baking chips
  • white chocolate chips
  • roasted peanuts
  • coconut flakes
  • candy pieces like M&M’s, or rolos

CLASSIC COOKIE BAR RECIPES

PEANUT BUTTER DESSERT RECIPES YOU’LL LOVE

Peanut Butter Bars

Classic Peanut Butter Bars with a thick layer of chocolate topping. An easy peanut butter cookie bar recipe that's quick to put together for a delicious dessert. This old fashioned dessert square is a school lunch lady copycat recipe.
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Course: Dessert
Cuisine: American
Keyword: peanut butter bars
Prep Time: 10 minutes
Cook Time: 25 minutes
Total Time: 35 minutes
Servings: 18 servings
Calories: 323kcal

Ingredients

  • ¾ cup creamy peanut butter
  • ½ cup unsalted butter (softened)
  • cup granulated sugar
  • 2 tsp vanilla extract
  • 1 large egg
  • cup all-purpose flour
  • ½ tsp baking soda
  • ½ tsp salt
  • 12 oz semi sweet chocolate chips
  • 3 tbsp milk (may use half half or heavy cream)

Instructions

  • Preheat oven to 350°F.
  • Beat peanut butter, butter, and sugar.
  • Mix in vanilla extract, and egg.
  • Slowly mix in flour, baking soda, and salt.
  • Evenly spread into a 9×13-inch baking dish.
  • Bake in oven 20-25 minutes.
  • Allow to cool slightly.
  • Melt chocolate in microwave on power level 4 OR using a double boiler method on the stovetop. To use this method, fill bottom of saucepan with 1-inch of water heated on low with a glass bowl that fits over the top of the pan and doesn't allow steam or water into the bowl.
    Stir in milk and mix until smooth.
  • Spread evenly over the bars.
  • Allow to cool before slicing and serving.

Nutrition

Calories:323kcal | Carbohydrates:35g | Protein:6g | Fat:18g | Saturated Fat:9g | Trans Fat:1g | Cholesterol:25mg | Sodium:157mg | Potassium:200mg | Fiber:2g | Sugar:22g | Vitamin A:186IU | Calcium:24mg | Iron:2mg

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