Sometimes, you just need a dessert that’s simple, sweet, and totally irresistible, right? Well, this No-Bake Marshmallow Slice is exactly that! With just a few pantry staples, you can whip up a treat that’s not only delicious but also super fun to make. The combination of buttery biscuits, marshmallows, and chocolate is the perfect no-bake treat to satisfy your sweet tooth without the hassle of turning on the oven. Plus, it’s so easy and quick, you’ll be sneaking bites before it’s even set. Trust me, you’re going to love this one—it’s the kind of dessert that makes everyone smile.
This treat is an absolute crowd-pleaser! Whether you’re hosting a party, packing a lunchbox, or just craving something sweet, this slice is the answer. Plus, it’s no-bake, so it’s a great one to make with kids or on those hot summer days when the last thing you want is to fire up the oven.
Why You’ll Love No-Bake Marshmallow Slice
Here’s why this recipe is an absolute winner:
No-Bake Perfection
No oven, no problem! This recipe is a total game-changer for those times when you don’t want to mess with baking but still want something sweet and satisfying. It’s a no-fuss, no-bake wonder.
Fun and Easy to Make
With just a few ingredients and simple steps, this slice is super easy to make. Plus, it’s a great one to make with the kids, so they can get involved and help with mixing and pressing the slice into the pan.
Sweet & Chewy
There’s something so comforting about the chewy texture of marshmallows combined with the crunch of the biscuits. It’s the ultimate sweet treat to satisfy your cravings for something both crunchy and gooey.
Make-Ahead Magic
This slice is perfect for making ahead of time. Once it’s set, it keeps really well in the fridge, making it an ideal make-ahead dessert for parties, picnics, or family gatherings.

Ingredients in No-Bake Marshmallow Slice
Let’s break down the ingredients that come together to make this slice so addictive. Here’s everything you’ll need:
For the Base:
- Digestive Biscuits or Graham Crackers: These provide the perfect crunchy base for the slice. They add texture and a bit of sweetness.
- Butter: The butter brings everything together and gives the base a lovely richness.
- Golden Syrup: This sweet, sticky syrup adds a touch of caramel flavor and helps bind the slice together.
- Marshmallows: The mini marshmallows are the star of this dessert—gooey, chewy, and delicious!
For the Chocolate Topping:
- Dark or Milk Chocolate: The chocolate topping brings this dessert to the next level. You can use dark chocolate for a richer taste, or milk chocolate for a sweeter, creamier flavor.
- Coconut Oil: This helps give the chocolate topping a glossy finish and a smoother texture.
- Optional Garnish: You can add a sprinkle of desiccated coconut, chopped nuts, or extra marshmallows on top for an extra touch of texture and flavor.
(Note: The full ingredients list, including measurements, is provided in the recipe card directly below.)
Instructions
Ready to make this no-bake dessert? Let’s dive right in!
Step 1: Prepare the Biscuit Base
Start by breaking the biscuits into small pieces. You want them to be chunky—don’t go overboard with crushing them, as you want a bit of texture. Place the broken biscuits in a large bowl and set aside.
Step 2: Melt the Butter and Golden Syrup
In a saucepan over low heat, melt the butter and golden syrup together, stirring occasionally. Once the butter has melted, remove the saucepan from the heat.
Step 3: Combine with Marshmallows
Pour the melted butter and golden syrup mixture over the broken biscuits and give everything a good stir until it’s all evenly coated. Then, fold in the marshmallows, making sure they’re well-distributed throughout the mixture.
Step 4: Press into the Pan
Line a baking dish or square pan with parchment paper for easy removal. Transfer the biscuit and marshmallow mixture into the pan and press it down firmly with the back of a spoon to create an even base. Pop the pan in the fridge to set for about 30 minutes, or until it firms up.
Step 5: Melt the Chocolate Topping
While the base is setting, melt the chocolate and coconut oil together. You can do this in a heatproof bowl over simmering water (double boiler method) or in the microwave in short bursts, stirring in between. Once melted, stir until smooth.
Step 6: Pour Over the Base
Once the base is set and firm, pour the melted chocolate over the top and spread it out evenly with a spatula. You can sprinkle extra marshmallows, chopped nuts, or desiccated coconut on top for added texture, if desired.
Step 7: Let it Set
Place the slice back into the fridge and let it set for at least 1 hour, or until the chocolate has hardened and everything is nicely chilled.
Step 8: Slice and Enjoy!
Once set, remove from the fridge and carefully lift the slice out of the pan using the parchment paper. Slice it into squares or bars and serve! The perfect sweet treat for any occasion.
Nutrition Facts
Servings: 12
Calories per serving: 240
Total Fat: 12g
Saturated Fat: 7g
Trans Fat: 0g
Cholesterol: 10mg
Sodium: 30mg
Total Carbohydrate: 30g
Dietary Fiber: 1g
Sugars: 18g
Protein: 2g
Vitamin A: 6%
Calcium: 20mg
Iron: 2mg
Potassium: 150mg
Preparation Time
- Prep Time: 15 minutes
- Setting Time: 1 hour
- Total Time: 1 hour 15 minutes
How to Serve No-Bake Marshmallow Slice
As a Snack or Dessert
This slice is perfect on its own, served as a snack or a quick dessert after dinner. It’s a sweet little bite of happiness!
For Parties and Picnics
Cut into small squares and serve at parties, BBQs, or picnics. It’s a fun and easy treat that everyone will enjoy.
Pack in Lunchboxes
It’s a great option to pack into lunchboxes for a sweet surprise. Kids will love the chewy marshmallows and chocolate topping.
Additional Tips
Use Different Biscuits
Feel free to swap out digestive biscuits for graham crackers, or any other biscuit you prefer. Each will bring a slightly different flavor, but all are delicious.
Customize the Topping
You can get creative with the topping! Add sprinkles, crushed candies, or even a drizzle of peanut butter for a twist.
Make It Dairy-Free
To make this recipe dairy-free, simply swap the butter with a dairy-free alternative and use dairy-free chocolate.
Store in the Fridge
Store leftovers in an airtight container in the fridge for up to 5 days. It’s even better when it’s chilled!
FAQ Section
Q1: Can I use regular-sized marshmallows instead of mini marshmallows?
A1: Yes, you can! Just cut the regular marshmallows into smaller pieces to make them easier to mix in.
Q2: Can I use honey instead of golden syrup?
A2: Yes, honey will work as a substitute for golden syrup, though it may add a slightly different flavor.
Q3: Can I make this slice vegan?
A3: Absolutely! Use dairy-free butter, chocolate, and marshmallows to make this a vegan-friendly treat.
Q4: How long does this slice keep?
A4: It keeps well in the fridge for about 5 days. Just store it in an airtight container.
Q5: Can I freeze this marshmallow slice?
A5: Yes! You can freeze it for up to a month. Just wrap it tightly in plastic wrap and then foil before freezing. Thaw in the fridge overnight before serving.
Q6: Can I add nuts to the base?
A6: Yes, feel free to add chopped nuts like almonds, walnuts, or cashews to the base for extra crunch and flavor.
Q7: How do I get the chocolate topping to stay smooth?
A7: Make sure you melt the chocolate slowly and stir it well to avoid any lumps. If you’re using coconut oil, it helps keep the chocolate glossy.
Q8: Can I add food coloring to the marshmallow base?
A8: Yes, you can add a few drops of food coloring to the marshmallows for a fun and colorful twist.
Q9: What size pan should I use?
A9: A square or rectangular pan works best. A 9×9-inch pan is perfect for this recipe, but you can adjust based on how thick you want the slice.
Q10: Can I use dark chocolate instead of milk chocolate?
A10: Yes, dark chocolate will give the slice a richer, slightly less sweet flavor, but it pairs perfectly with the sweetness of the base.
Conclusion
This No-Bake Marshmallow Slice is the perfect balance of crunch, gooey marshmallow goodness, and chocolatey indulgence. It’s so easy to make, and it’s a treat everyone will love. Whether you’re making it for a party, a casual family dessert, or just to snack on, it’s bound to be a hit. Give it a try, and I promise you’ll be reaching for seconds!
Print
No-Bake Marshmallow Slice
- Total Time: 0 hours
- Yield: 16–20 bars 1x
Description
This No-Bake Marshmallow Slice is a delicious and easy-to-make treat that combines crispy, buttery, and sweet ingredients with gooey marshmallows. Perfect for satisfying your sweet tooth without turning on the oven! It’s ideal for parties, snacks, or a quick dessert. Simple to prepare and irresistible to eat!
Ingredients
- 1/2 cup (115g) butter, melted
- 1/2 cup (120g) golden syrup or honey
- 1/4 cup (50g) sugar
- 3 cups (240g) rice bubbles (Rice Krispies or puffed rice)
- 1 1/2 cups (180g) mini marshmallows (or regular marshmallows cut into small pieces)
- 1/4 cup (25g) desiccated coconut (optional, for coating or mixing)
- 1/2 cup (90g) chocolate chips (optional, for topping)
Instructions
- Prepare the Pan: Line a 9×9-inch (23×23 cm) square baking pan with parchment paper or lightly grease it to prevent sticking.
- Make the Syrup Mixture: In a medium saucepan, melt the butter over medium heat. Once melted, add the golden syrup (or honey) and sugar. Stir until the sugar is dissolved, and the mixture is smooth.
- Combine with Rice Bubbles: Remove the saucepan from the heat. Add the rice bubbles to the syrup mixture and stir until fully coated.
- Add Marshmallows: Gently fold in the mini marshmallows (or chopped marshmallows). Be careful not to melt them too much; you want them to hold their shape.
- Press Into Pan: Pour the mixture into the prepared baking pan. Press it down firmly using the back of a spoon or your hands to ensure it’s compact and even.
- Chill: If you’re using chocolate chips, sprinkle them over the top of the mixture while it’s still warm, pressing them in slightly. Alternatively, you can melt the chocolate chips and drizzle them over the slice later. Let the slice cool at room temperature for 30 minutes, then refrigerate it for 1-2 hours or until firm.
- Slice & Serve: Once set, remove from the fridge and cut into squares or bars. Serve and enjoy!
Notes
- You can mix in extra treats like chopped dried fruit, nuts, or chocolate chunks for variety.
- If you don’t have golden syrup, honey or maple syrup works as a substitute.
- For a chocolate-covered version, dip the finished slice into melted chocolate before refrigerating.
- For a more decadent treat, sprinkle some shredded coconut or top with crushed candy for extra texture and flavor.
- Prep Time: 10 minutes
- Cook Time: 1-2 hours
- Category: Dessert
- Method: No-Bake
- Cuisine: American
Nutrition
- Serving Size: 1 slice
- Calories: 180
- Sugar: 20g
- Sodium: 50mg
- Fat: 9g
- Saturated Fat: 5g
- Unsaturated Fat: 3g
- Trans Fat: 0g
- Carbohydrates: 26g
- Fiber: 1g
- Protein: 1g
- Cholesterol: 15mg