Pin A rich, creamy chocolate fudge loaded with mini marshmallows, ready in just minutes using the microwave. Perfect for holiday treats or last-minute desserts.
I first tried this fudge on a busy holiday afternoon and was amazed how simple yet delicious it turned out, making it my go-to dessert for gatherings.
Ingredients
- Chocolate Base: 3 cups (510 g) semi-sweet chocolate chips, 1 can (14 oz / 400 g) sweetened condensed milk, 1/4 cup (55 g) unsalted butter (cut into pieces), 1 tsp vanilla extract
- Marshmallows: 2 cups (100 g) mini marshmallows
- Optional Add-ins: 1/2 cup (65 g) chopped walnuts or pecans (optional), Pinch of sea salt (optional for topping)
Instructions
- Prepare Pan:
- Line an 8x8-inch (20x20 cm) baking pan with parchment paper, leaving an overhang for easy removal.
- Melt Chocolate & Butter:
- In a large microwave-safe bowl, combine chocolate chips, sweetened condensed milk, and butter.
- Microwave & Stir:
- Microwave on high in 30-second intervals, stirring after each, until the mixture is melted and smooth (about 1.5–2 minutes total).
- Add Vanilla:
- Stir in the vanilla extract until fully combined.
- Fold in Marshmallows & Nuts:
- Gently fold in mini marshmallows and optional nuts, if using.
- Spread & Chill:
- Quickly spread mixture evenly into the prepared pan. Sprinkle with sea salt if desired.
- Refrigerate:
- Chill in the refrigerator for at least 1 hour or until firm.
- Serve:
- Lift out the fudge using the parchment overhang and cut into squares to serve.
Pin 
My family loves cutting these fudge squares together, making it a sweet tradition every winter.
Required Tools
Use an 8x8-inch (20x20 cm) baking pan, microwave-safe mixing bowl, spatula, parchment paper, and a knife for slicing.
Allergen Information
Dairy (butter, sweetened condensed milk) and soy (in chocolate chips) are present. May contain nuts if add-ins are used.
Nutritional Information
Each square is about 140 calories, 6 g fat, 21 g carbohydrates, and 2 g protein (without nuts).
Pin Enjoy this marshmallow fudge fresh for best texture and flavor. It's a crowd-pleaser for any occasion!
Recipe Questions & Answers
- → What type of chocolate works best for this fudge?
Semi-sweet chocolate chips offer a balanced sweetness, but milk or dark chocolate can be used to adjust the flavor profile.
- → Can I add nuts to this chocolate marshmallow treat?
Yes, chopped walnuts or pecans can be folded in before chilling to add crunch and flavor, though they are optional.
- → How do I ensure the fudge sets properly?
Chill the mixture in the refrigerator for at least one hour until it becomes firm enough to cut into squares.
- → Is the microwave method effective for melting ingredients?
Microwaving in short intervals while stirring helps melt the chocolate, butter, and condensed milk smoothly without burning.
- → What storage recommendations keep the fudge fresh?
Store the finished bars in an airtight container in the refrigerator for up to one week to maintain freshness and texture.