Marshmallow Fudge Bars Recipe

Indulge in these irresistible marshmallow fudge bars! A chewy, fudgy base topped with gooey marshmallows and a luscious creamy frosting. Easy to make and perfect for any occasion, these bite-sized treats will disappear in a flash. Get the recipe now!

Prep Time 20 mins
Cook Time 45 mins
Calories 7075.2 kcal
Protein 167g
Rating Be the first
Marshmallow Fudge Bars 57

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Forktionary editorial kitchen team

The Forktionary Kitchen Team

Adapted from Food.com, then tested & standardized by Forktionary.

Ingredients for Marshmallow Fudge Bars

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How to Make Marshmallow Fudge Bars

  1. Preheat oven to 350°F (175°C).
  2. Line a 10x15 inch baking pan with aluminum foil and lightly grease.
  3. In a large bowl, cream together 1 cup (2 sticks) unsalted butter or shortening with 2 cups granulated sugar using an electric mixer until light and fluffy.
  4. Beat in 2 large eggs and 1 teaspoon vanilla extract until well combined.
  5. In a separate bowl, whisk together 2 cups all-purpose flour, ½ cup unsweetened cocoa powder, 1 teaspoon baking powder, ½ teaspoon baking soda, and ¼ teaspoon salt.
  6. Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Be careful not to overmix.
  7. Stir in 1 cup chopped nuts (optional).
  8. Spread the batter evenly in the prepared pan.
  9. Bake for 12-15 minutes, or until a toothpick inserted into the center comes out with moist crumbs.
  10. Remove from oven and immediately cover the warm crust with 1 (10 ounce) bag of mini marshmallows.
  11. Return to the oven for 2-3 minutes, or until marshmallows are softened and slightly melted.
  12. Remove from oven and let cool completely.
  13. While the crust cools, prepare the frosting: In a medium saucepan over medium heat, combine 1 cup granulated sugar, ¼ cup light corn syrup, ¼ cup milk, and 1 tablespoon unsalted butter.
  14. Bring to a boil, stirring constantly, and cook for 3 minutes.
  15. Remove from heat and stir in 2 tablespoons unsalted butter and 1 teaspoon vanilla extract.
  16. Let cool for about 10 minutes.
  17. Stir in 2 cups powdered sugar until smooth and creamy.
  18. Spread the frosting evenly over the cooled marshmallow layer.
  19. Refrigerate for at least 30 minutes to allow the frosting to set.
  20. Cut into 1x1 inch bars.

Nutrition Information (Approximate per serving)

Sodium

152 g

Sugar

3001g

Fat

873g

Carbs

325g

Frequently Asked Questions

How long does it take to make Marshmallow Fudge Bars?

Marshmallow Fudge Bars takes about 65 minutes from start to finish — roughly 20 minutes to prepare and 45 minutes to cook.

How many calories are in Marshmallow Fudge Bars?

Marshmallow Fudge Bars has approximately 7075.2 calories per serving, with about 167 g protein, 325 g carbohydrates and 529 g fat.

What ingredients do I need for Marshmallow Fudge Bars?

The key ingredients for Marshmallow Fudge Bars are Butter, Granulated Sugar, Eggs, Vanilla Extract, Flour, Baking Powder. See the full list with measurements above.

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