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4.7 from 9 votes

Extra-Marshmallow Chocolate Peanut Butter Rice Krispies Bars

With just five ingredients and LOTS of marshmallows, these Extra-Marshmallow Chocolate Peanut Butter Rice Krispies Bars are the perfect treat to feed a crowd. Each batch makes up to 48 bars and there's no baking required, making these an ideal potluck dessert!

Prep Time
10 mins
Cook Time
10 mins
Total Time
25 mins
Servings: 48 servings
Calories: 238 kcal
Course: Baked Goods
Cuisine: American

Ingredients

  • 1 cup unsalted butter
  • 24 ounces semi-sweet chocolate chips - here's my favorite!
  • 50 ounces mini marshmallows divided
  • ½ cup creamy peanut butter not natural peanut butter
  • 12 cups Rice Krispies cereal

Instructions

    Cup of Yum
  1. Lightly spray a 12" x 17" pan with nonstick spray and set aside. Unwrap the butter and reserve the paper wrappers for pressing the final mixture into the pan. The wrappers provide a great nonstick means for pressing in that super sticky mixture. Measure out the cereal into a large bowl and set aside.
  2. In a very large pot (I use a large soup pot) over medium heat, melt butter, chocolate chips, 40 ounces (four 10-ounce bags) of the marshmallows, and peanut butter. Stir almost continuously with a sturdy wooden spoon, scraping the bottom of the pot to make sure the mixture isn't scorching. The mixture will be very thick. When just about completely combined, remove pot from heat and stir vigorously to finish combining.
  3. Now you want to move quickly in these last steps because as this thick mixture cools, it gets harder to fold. Have your cereal and remaining marshmallows ready to go! That wooden spoon is going to give you a good workout! Quickly fold in the cereal until completely mixed throughout. Then sprinkle the remaining 10 ounces of marshmallows over the top and quickly fold them in. Aim to keep the marshmallows intact, so there are extra-marshmallow bites scattered throughout the bars.
  4. Transfer mixture to prepared pan and use the buttery side of the reserved butter wrappers to press the mixture evenly into the pan. Let cool completely and then cut into squares.

Notes

  • from a farmgirl's dabbles

Nutrition Information

Serving 1 Calories 238kcal (12%) Carbohydrates 40g (13%) Protein 2g (4%) Fat 10g (15%) Saturated Fat 5g (25%) Polyunsaturated Fat 4g Cholesterol 10mg (3%) Sodium 75mg (3%) Fiber 1g (4%) Sugar 26g (52%)

Nutrition Facts

Serving: 48servings

Amount Per Serving

Calories 238

% Daily Value*

Serving 1
Calories 238kcal 12%
Carbohydrates 40g 13%
Protein 2g 4%
Fat 10g 15%
Saturated Fat 5g 25%
Polyunsaturated Fat 4g 24%
Cholesterol 10mg 3%
Sodium 75mg 3%
Fiber 1g 4%
Sugar 26g 52%

* Percent Daily Values are based on a 2,000 calorie diet.