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+ servings
Three fudgy marshmallow brownies stacked next to a fork and a glass jar of milk
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4.55 from 88 votes

Fudgy Marshmallow Brownies

Soft, Chewy Brownie Topped with Marshmallows and Chocolate Frosting! This is our Favorite Brownie of all time and it will soon be yours too!
Prep Time10 mins
Cook Time25 mins
Total Time35 mins
Course: Dessert
Cuisine: American
Servings: 20 bars
Calories: 324kcal
Author: Julie Evink


  • 18.3 oz package Betty Crocker Fudge Brownie Mix + Ingredients to prepare
  • 2 c. marshmallows
  • 6 Tbsp half and half
  • 6 Tbsp butter
  • 1 1/2 c. white sugar
  • 1/2 c. chocolate chips


  • Prepare brownie mix according to package directions.
  • Cover prepared brownies with marshmallows immediately after baking and set in hot oven that's been turned off until they puff up about 2-3 minutes. Remove from oven.
  • In a medium size saucepan bring half and half, butter and white sugar to a boil. Boil for one minute, stirring frequently not to scorch the bottom. Stir in chocolate chips, stirring mixture until they are melted and frosting is smooth. Immediately spread over brownies.



Serving: 1g | Calories: 324kcal | Carbohydrates: 61g | Protein: 2g | Fat: 8g | Saturated Fat: 4g | Cholesterol: 11mg | Sodium: 131mg | Potassium: 5mg | Sugar: 47g | Vitamin A: 135IU | Calcium: 13mg | Iron: 0.9mg