Deluxe Baked Marshmallow Peanut Butter Rice Krispies Squares Bar
Dive into decadence with these Deluxe Baked Marshmallow Peanut Butter Rice Krispies Squares Bars—a rich, chewy, and slightly crunchy treat that's irresistibly indulgent! This elevated twist on the classic dessert combines gooey melted marshmallows, creamy peanut butter, and crispy Rice Krispies cereal, all baked to perfection for a lightly golden finish. Topped with melty semi-sweet chocolate chips, crunchy roasted peanuts, and a sprinkle of flaky sea salt for a gourmet touch, these bars are the ultimate sweet-salty snack. Easy to prepare in just 30 minutes, they’re perfect for bake sales, parties, or a simple indulgence at home. Each bite delivers layers of texture and flavor—sticky, nutty, chocolaty, and utterly delicious. Make these deluxe bars your go-to for a crowd-pleasing dessert!
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Recipe Information
Ingredients
- 6 tablespoons Unsalted butter
- 10 cups Mini marshmallows
- 1 cup Creamy peanut butter
- 1.5 teaspoons Vanilla extract
- 0.5 teaspoons Salt
- 6 cups Rice Krispies cereal
- 1 cup Semi-sweet chocolate chips
- 0.5 cup Chopped roasted peanuts
- 0.25 teaspoons Flaky sea salt (optional, for topping)
Instructions
Preheat your oven to 350°F (175°C) and line a 9x13-inch baking pan with parchment paper, leaving an overhang for easy removal later.
In a large pot over medium heat, melt the butter. Once melted, stir in 8 cups of mini marshmallows and cook, stirring constantly, until the marshmallows are fully melted and smooth.
Reduce the heat to low and stir in the peanut butter, vanilla extract, and salt until well combined.
Remove the pot from the heat and quickly fold in the Rice Krispies cereal until evenly coated in the marshmallow-peanut butter mixture. Stir in the remaining 2 cups of mini marshmallows for added texture.
Press the mixture evenly into the prepared pan, using a greased spatula or the back of a spoon to ensure an even layer. Be careful not to press too hard; this will keep the bars light and chewy.
Sprinkle the chocolate chips and chopped peanuts evenly over the top of the mixture, gently pressing them into the surface.
Bake the pan in the preheated oven for 8-10 minutes, just until the chocolate chips melt slightly and the top is lightly golden.
Remove from the oven and sprinkle with flaky sea salt, if desired. Allow the bars to cool completely in the pan, about 1 hour at room temperature or 20 minutes in the refrigerator.
Once cooled and set, use the parchment overhang to lift the bars out of the pan and onto a cutting board. Slice into 12 equal squares or rectangles.
Serve and enjoy! Store any leftovers in an airtight container at room temperature for up to 3 days.
Nutrition Facts
Calories |
5622 | ||
|---|---|---|---|
% Daily Value* |
|||
| Total Fat | 274.0 g | 351% | |
| Saturated Fat | 98.0 g | 490% | |
| Polyunsaturated Fat | 0.0 g | ||
| Cholesterol | 186 mg | 62% | |
| Sodium | 4068 mg | 177% | |
| Total Carbohydrate | 763.5 g | 278% | |
| Dietary Fiber | 34.0 g | 121% | |
| Total Sugars | 452.1 g | ||
| Protein | 100.0 g | 200% | |
| Vitamin D | 12.0 mcg | 60% | |
| Calcium | 217 mg | 17% | |
| Iron | 49.0 mg | 272% | |
| Potassium | 2205 mg | 47% | |
*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.
