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Rocky Mountain Brownies Recipe

Prepare for an irresistible avalanche of chocolatey goodness! These Rocky Mountain Brownies are legendary for their addictive combination of fudgy brownie base, gooey marshmallows, and rich, decadent frostings. So popular, they vanish before you can say 'chocolate'! Get ready for a brownie experience that's truly unforgettable. Perfect for potlucks, family gatherings, or indulging your own chocolate cravings.

Prep Time 20 mins
Cook Time 55 mins
Calories 11052 kcal
Protein 187g
Rating 5.0 (2 Reviews)
Rocky Mountain Brownies 28

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Chef Forktionary, author of this recipe

Recipe adapted from Food.com. Standardized by Forktionary.

Ingredients for Rocky Mountain Brownies

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How to Make Rocky Mountain Brownies

  1. Preheat oven to 350°F (175°C). Grease and flour a 12x15 inch jelly roll pan.
  2. In a large bowl, melt 1 cup (2 sticks) unsalted butter, 1 cup unsweetened cocoa powder, and 2 cups granulated sugar together until smooth.
  3. Beat in 4 large eggs one at a time, then blend in 2 cups all-purpose flour, 1 teaspoon salt, and 1 teaspoon vanilla extract until just combined.
  4. Gently fold in 1 cup chopped walnuts or pecans (optional).
  5. Pour batter into the prepared pan and bake for 25-30 minutes, or until a wooden skewer inserted into the center comes out with moist crumbs.
  6. Immediately after removing from oven, while still hot, completely cover the warm brownies with 2 cups mini marshmallows.
  7. Return to the oven for 2-3 minutes, or until marshmallows are soft and slightly melted but not browned.
  8. Let the brownies cool completely in the pan.
  9. **Frosting #1:** In a medium bowl, cream together ½ cup (1 stick) unsalted butter, ½ cup unsweetened cocoa powder, ½ cup heavy cream, 3 cups powdered sugar, and a pinch of salt until smooth and creamy.
  10. Spread frosting #1 evenly over the marshmallow layer. Refrigerate for at least 12 hours to set.
  11. **Frosting #2:** In a medium saucepan, combine 1 cup granulated sugar, ½ cup milk, ¼ cup butter, and 4 ounces of good quality baking chocolate. Cook over medium heat, stirring constantly, until the mixture reaches the soft-ball stage (235°F on a candy thermometer).
  12. Carefully pour the hot frosting #2 over the cooled and frosted brownies. Let it set completely before cutting and serving.

Nutrition Information (Approximate per serving)

Sodium

135 g

Sugar

5228g

Fat

1314g

Carbs

531g

Recipe Tags (Choose a tag and find related recipes!)

60 Minutes Or Less Time To Make Course Main Ingredient Cuisine Preparation Occasion North American Desserts Lunch Fruit American Oven Easy Beginner Cook Potluck Dinner Party Holiday Event Kid Friendly Picnic Cakes Cookies And Brownies Chocolate Bar Cookies Brownies Nuts Stove Top Dietary Low Sodium Comfort Food Brown Bag Low In Something Taste Mood To Go Equipment Number Of Servings