Go Back
+ servings
Peanut Butter Swirl Bars | Can't Stay Out of the Kitchen | some of our favorite #brownies ever! #chocolatechips are swirled into a delicious #peanutbutter #brownie batter. Rich, decadent, heavenly! #dessert #chocolate

Peanut Butter Swirl Bars

Peanut Butter Swirl Bars have been some of our favorite brownies for decades. This vintage recipe is so quick and easy to make, plus it uses two of your favorite ingredients. Chocolate and Peanut Butter! This one has a crunchy peanut butter dough and softened chocolate chips swirled gently into the batter to marbleize. These bars are perfect for tailgating parties, potlucks, soccer or gymnastics practice or even holiday baking. No one ever turns these brownies down!
Prep Time 10 mins
Cook Time 25 mins
Total Time 35 mins
Course Cookies, Brownies and Bars, Dessert
Cuisine American
Servings 24
Calories 224 kcal


  • 1 medium mixing bowl
  • 1 wooden spoon
  • measuring cups
  • measuring spoons
  • 1 9x13" glass baking dish


  • 3/4 cup brown sugar packed
  • 1 tsp. baking powder
  • 1 cup UNBLEACHED all-purpose flour bleached flour toughens baked goods
  • 3/4 cup sugar
  • 2 tsp. vanilla extract
  • 1/2 cup extra crunchy peanut butter
  • 1/2 cup unsalted butter
  • 2 large eggs
  • 1/4 tsp. sea salt
  • 12 oz. bag semi-sweet chocolate chips


  • Mix all ingredients, except chips and spread into a greased 9x13" glass baking dish.
  • Sprinkle chocolate chips on top.
  • Place in 350° oven for 5 minutes.
  • Remove from oven; run knife through in swirling patterns to marbleize.
  • Return to oven.
  • Bake for approximately 15-20 minutes more--until set but not so that chocolate overmelts and becomes gooey.
  • Cool; cut into bars.


NOTE: Try not to be heavy handed when swirling the softened chocolate chips into the batter. You want to be able to see the peanut butter and not just the chocolate.
NOTE: These brownies only need to be baked about 15-20 minutes after swirling the slightly melted chocolate chips into the batter. Overbaking causes the chocolate to melt too much and becomes so gooey that the chocolate chips and swirls will not hold their shape very well.
Recipe adapted from the back of a Nestle chocolate chip package.
© Can’t Stay Out of the Kitchen


Calories: 224kcalCarbohydrates: 26gProtein: 3gFat: 12gSaturated Fat: 6gPolyunsaturated Fat: 1gMonounsaturated Fat: 4gTrans Fat: 0.2gCholesterol: 27mgSodium: 78mgPotassium: 143mgFiber: 2gSugar: 19gVitamin A: 148IUCalcium: 33mgIron: 1mg
Keyword brownie, chocolate, chocolate chip cookie, chocolate chips, chocolate dessert, cookie, dessert, peanut butter
Tried this recipe?Let us know how it was!