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An image of stacked Rocky Mountain avalanche bars.
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4.98 from 38 votes

Rocky Mountain Avalanche Bars Recipe

Rocky Mountain Avalanche Bars are part rice krispies treat, part peanut butter fudge, and part white chocolate bark. These totally addicting bars are perfect for a holiday cookie platter or for an easy treat any time of the year!
Prep Time10 minutes
Additional Time30 minutes
Total Time40 minutes
Course: Dessert
Cuisine: American
Servings: 24 - 32 bars
Calories: 152kcal
Author: Amy Nash

Ingredients

  • 4 cups white chocolate chopped (about 24 ounces)
  • ½ cup creamy peanut butter
  • 3 cups rice krispies cereal
  • 3 cups mini marshmallows
  • ½ cup mini chocolate chips

Instructions

  • Line a 9x13-inch baking dish with a parchment paper sling or lightly grease with butter or baking spray.
  • In a large microwave-safe bowl, melt the white chocolate in a microwave on 50% heat in 30 second bursts, stirring between each burst, until melted.
  • Stir the peanut butter into the melted white chocolate until combined. Add the rice krispies and marshmallows. Gently stir to coat.
  • Transfer the mixture to a 9x13-inch pan and spread into an even layer. Sprinkle with mini chocolate chips while still wet and lightly press them into the bars.
  • Let the bars set at room temperature until firm, or refrigerate for 15-30 minutes to speed up the process. Remove the bars from the pan with the parchment paper sling, then carefully cut into squares with a large, sharp knife.

Notes

  • Storage: Keep the sliced bars in an airtight container on the counter at room temperature for up to 5 days.
  • Freezing: You can freeze these bars for up to 3 months. Thaw on the counter at room temperature for 2-3 hours before serving.
Adapted from Cookies & Cups.

Nutrition

Calories: 152kcal | Carbohydrates: 19g | Protein: 2g | Fat: 8g | Saturated Fat: 4g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 2g | Trans Fat: 1g | Cholesterol: 4mg | Sodium: 53mg | Potassium: 77mg | Fiber: 1g | Sugar: 15g | Vitamin A: 186IU | Vitamin C: 2mg | Calcium: 38mg | Iron: 1mg