No-Bake Marshmallow Slice

No-Bake Marshmallow Slice

If you’re craving an easy dessert that doesn’t require turning on the oven, this No-Bake Marshmallow Slice is the perfect solution. Sweet, chewy, chocolatey, and incredibly simple, this classic slice is a favorite for bake sales, lunchboxes, holidays, and last-minute entertaining. With just a handful of pantry staples and about 15 minutes of prep time, you’ll have a crowd-pleasing treat that looks impressive but couldn’t be easier to make.

No-bake slices are loved for their convenience, and this marshmallow slice delivers big on flavor and texture. Crunchy biscuits, fluffy marshmallows, and a rich chocolate base come together in one irresistible bite. Best of all, it sets beautifully in the fridge, making it ideal for make-ahead desserts.

Why You’ll Love This No-Bake Marshmallow Slice

• No oven required

• Ready with minimal prep

• Perfect balance of crunchy, chewy, and creamy

• Great for parties, kids’ treats, and gifting

• Easily customizable with add-ins

Ingredients

• 3 cups plain sweet biscuits (digestive or Marie), roughly crushed

• 2 cups mini marshmallows

• 1 cup milk chocolate chips or chopped chocolate

• 1/2 cup unsalted butter

• 2 tablespoons golden syrup or honey

• Optional add-ins:

  • 1/2 cup desiccated coconut

  • 1/4 cup chopped nuts

  • Sprinkles for topping

Instructions

1. Line an 8×8-inch (20×20 cm) pan with parchment paper, leaving some overhang for easy removal.

2. In a large mixing bowl, combine crushed biscuits and mini marshmallows. Set aside.

3. In a saucepan over low heat, melt butter, chocolate, and golden syrup together, stirring constantly until smooth and glossy.

4. Remove from heat and immediately pour the chocolate mixture over the biscuit and marshmallow mixture.

5. Stir gently until everything is evenly coated.

6. Press the mixture firmly into the prepared pan using the back of a spoon or spatula.

7. Sprinkle with coconut, nuts, or sprinkles if desired.

8. Refrigerate for at least 2 hours, or until fully set.

9. Once firm, lift from the pan and cut into squares or bars.

Tips for the Best Marshmallow Slice

• Use mini marshmallows so they distribute evenly throughout the slice.

• Let the chocolate mixture cool slightly before mixing to prevent marshmallows from melting too much.

• Press the mixture firmly into the pan to ensure clean slices once set.

• Chill overnight for the neatest cuts.

Serving & Storage

Serve this no-bake marshmallow slice straight from the fridge or allow it to sit at room temperature for 10 minutes before serving for a softer bite. Store leftovers in an airtight container in the refrigerator for up to 5 days, or freeze for up to 2 months.

Variations

• Swap milk chocolate for dark or white chocolate

• Add peanut butter for a richer flavor

• Stir in chopped dried fruit for extra texture

• Top with a layer of melted chocolate for a bakery-style finish

This No-Bake Marshmallow Slice is proof that simple desserts can still be incredibly delicious. Whether you’re short on time or just want an easy, reliable treat, this recipe is one you’ll turn to again and again.