If you’re craving an irresistible treat that combines rich chocolate, chewy marshmallows, and a crunchy biscuit base, look no further than this Hot Chocolate Slice Recipe. This slice is the perfect dessert to satisfy your sweet tooth with its layers of cocoa-infused biscuit base, a fluffy marshmallow topping, and a glossy dark chocolate glaze. Whether it’s for a cozy afternoon snack or to impress guests, this Hot Chocolate Slice Recipe will quickly become a beloved classic in your dessert repertoire.

Ingredients You’ll Need
Getting started with this Hot Chocolate Slice Recipe is a breeze thanks to its simple yet essential ingredients. Each component plays a key role in building up the texture, flavor, and visual appeal of the final slice.
- 1 1/2 cups crushed digestive biscuits: Offers a crunchy and buttery base that’s the perfect foundation.
- 1 cup desiccated coconut: Adds delightful chewiness and a subtle tropical note.
- 1/2 cup cocoa powder: Provides that deep chocolate flavor that brings everything together.
- 1/2 cup unsalted butter, melted: Helps bind the base ingredients and gives a luscious, rich mouthfeel.
- 1/2 cup sweetened condensed milk: Sweetens and moistens the base with creamy goodness.
- 1 teaspoon vanilla extract: Brightens the overall flavor with warm aromatic notes.
- 1 cup mini marshmallows: The star of the topping, creating soft, gooey patches that melt perfectly in your mouth.
- 1 tablespoon unsalted butter: Used to melt with the marshmallows for a smooth, spreadable texture.
- 4 oz dark chocolate, chopped: Forms the rich and shiny glaze that crowns the slice beautifully.
- 2 tablespoons heavy cream: Combined with chocolate to make a silky smooth ganache topping.
How to Make Hot Chocolate Slice Recipe
Step 1: Prepare the base
Start by combining the crushed digestive biscuits, desiccated coconut, and cocoa powder in a large mixing bowl. This dry mix creates the backbone of the slice, contributing texture and a satisfying chocolate hit.
Step 2: Combine wet ingredients
Add the melted butter, sweetened condensed milk, and vanilla extract to the bowl with your dry ingredients. Stir everything together until the mixture is fully combined and has a sticky, crumbly consistency that holds together when pressed.
Step 3: Press the base into the pan
Line a 9-inch square baking pan with parchment paper for easy removal after chilling. Then press your biscuit mixture evenly into the base of the pan. Use the back of a spoon or the palm of your hand to smooth it out and compact the base firmly so it sets nicely.
Step 4: Chill the base
Place the pan in the fridge for at least 1 hour. This step is crucial because it lets the base firm up so your slice will hold together beautifully when sliced later.
Step 5: Prepare the marshmallow topping
In a small saucepan over low heat, melt the butter, then add the mini marshmallows. Stir continuously until the marshmallows melt completely and form a smooth, glossy mixture. This luscious layer will give your dessert a soft and pillowy contrast.
Step 6: Spread the marshmallow mixture
Remove the pan from heat and let the marshmallow topping cool slightly so it thickens just a bit. Then spread it evenly over the chilled base, covering every corner. This sticky layer is where the magic begins to really shine.
Step 7: Prepare the chocolate glaze
In a microwave-safe bowl, heat the chopped dark chocolate and heavy cream in 20-second intervals, stirring between each until the chocolate is melted fully and smooth. This rich ganache glaze brings an elegant finish to your slice.
Step 8: Add the glaze and chill
Pour the chocolate ganache over the marshmallow layer and spread it evenly with a spatula, taking care to cover all areas. Return the pan to the fridge for at least 2 hours to let everything set firmly.
Step 9: Serve and enjoy
Once fully chilled and set, remove the slice from the pan and cut into generous squares. Enjoy this delightful Hot Chocolate Slice Recipe with friends or any time you want a delicious indulgence.
How to Serve Hot Chocolate Slice Recipe

Garnishes
Sprinkle a pinch of shredded coconut or a few crushed biscuits over the chocolate glaze before it sets for extra texture and a pretty finishing touch. If you’re feeling festive, a light dusting of edible gold dust or colorful sprinkles can really amp up the fun.
Side Dishes
This slice pairs wonderfully with a scoop of vanilla ice cream or a dollop of whipped cream to balance the rich chocolate flavors. For a cozy experience, serve with a warm mug of your favorite coffee or, true to the name, a delicious cup of hot chocolate.
Creative Ways to Present
Cut the Hot Chocolate Slice into bite-sized squares and place them on a wooden board with fresh berries and nuts for an inviting dessert platter. Alternatively, layer broken pieces into a clear jar with whipped cream and crushed biscuit crumbs to create an eye-catching parfait.
Make Ahead and Storage
Storing Leftovers
Keep any leftover Hot Chocolate Slice refrigerated in an airtight container. It will stay fresh for up to 5 days, making it an excellent make-ahead treat for busy weeks or unexpected guests.
Freezing
If you want to store the slice longer, wrap individual pieces in plastic wrap and place them in a freezer-safe container or zip-lock bag. Frozen slices maintain their flavor and texture well for up to 2 months.
Reheating
Because this slice is meant to be enjoyed chilled, it’s best served straight from the fridge or thawed at room temperature. Avoid microwaving as it can melt the marshmallow topping and glaze, altering the texture.
FAQs
Can I use another type of biscuit instead of digestive biscuits?
Absolutely! Graham crackers or any plain, crunchy biscuit work wonderfully as a substitute. Just make sure to crush them finely for the best texture in the base.
Is it possible to make this Hot Chocolate Slice Recipe dairy-free?
Yes, you can swap the butter for a plant-based alternative and use a dairy-free condensed milk. Choose dairy-free chocolate and cream substitutes to keep it fully vegan and just as delicious.
Can I skip the marshmallows if I don’t have them on hand?
The marshmallow layer is a key part of the texture and sweetness, but if you’re in a pinch, you could try replacing it with a caramel layer or a thicker chocolate ganache. It won’t be quite the same, but still tasty!
How long does this dessert take to set properly?
The base needs at least 1 hour to chill, and after adding the marshmallow and chocolate layers, allow at least 2 more hours for the slice to fully set. Patience here pays off with perfect slices every time.
Can I add nuts or other mix-ins to the base?
Definitely! Chopped nuts like hazelnuts or almonds add a wonderful crunch and flavor contrast. Just fold them into the base mixture before pressing into the pan.
Final Thoughts
This Hot Chocolate Slice Recipe truly hits all the right notes for a crowd-pleasing dessert that’s simple to make but big on flavor and texture. Once you try it, you’ll understand why it’s such a cherished favorite that keeps friends and family coming back for more. So grab those ingredients and dive into making this scrumptious slice – your sweet tooth will thank you!
Print
Hot Chocolate Slice Recipe
- Prep Time: 20 minutes
- Cook Time: 10 minutes
- Total Time: 3 hours 15 minutes
- Yield: 16 servings
- Category: Dessert
- Method: No-Cook
- Cuisine: Australian
Description
This delicious Hot Chocolate Slice is a no-bake treat featuring a rich cocoa and biscuit base topped with a smooth marshmallow layer and finished with a glossy dark chocolate glaze. Perfect for satisfying your chocolate cravings, this slice combines crunchy, creamy, and gooey textures in every bite.
Ingredients
Base Ingredients
- 1 1/2 cups crushed digestive biscuits (or graham crackers)
- 1 cup desiccated coconut
- 1/2 cup cocoa powder
- 1/2 cup unsalted butter, melted
- 1/2 cup sweetened condensed milk
- 1 teaspoon vanilla extract
Marshmallow Topping
- 1 cup mini marshmallows
- 1 tablespoon unsalted butter
Chocolate Glaze
- 4 oz dark chocolate, chopped
- 2 tablespoons heavy cream
Instructions
- Prepare the base: In a large mixing bowl, combine the crushed digestive biscuits, desiccated coconut, and cocoa powder for the dry base mixture.
- Mix wet ingredients into base: Add the melted butter, sweetened condensed milk, and vanilla extract to the dry ingredients. Stir thoroughly until well combined.
- Press the base into the pan: Line a 9-inch square baking pan with parchment paper. Evenly press the mixture into the base using the back of a spoon to smooth and compact it.
- Chill the base: Place the pan in the refrigerator for at least 1 hour or until the base is firm and set.
- Prepare the marshmallow topping: In a small saucepan over low heat, melt the butter. Add the mini marshmallows and stir continuously until completely melted and smooth.
- Apply the marshmallow layer: Remove the melted marshmallow mixture from heat and let it cool slightly. Spread it evenly over the chilled biscuit base in the pan.
- Prepare the chocolate glaze: In a microwave-safe bowl, heat the dark chocolate and heavy cream in 20-second intervals, stirring between each, until fully melted and smooth.
- Pour the glaze over marshmallows: Evenly pour the melted chocolate glaze on top of the marshmallow layer, using a spatula to spread it smoothly.
- Chill the slice to set: Return the pan to the refrigerator for at least 2 hours or until fully set and firm.
- Serve: Once set, cut into squares and serve your delicious Hot Chocolate Slice.
Notes
- Use parchment paper in the pan to easily lift the slice out once set.
- Digestive biscuits can be substituted with graham crackers if preferred.
- Ensure the marshmallow mixture is not too hot when spreading to avoid melting the base.
- Adjust the cocoa powder to taste for a milder or stronger chocolate flavor.
- This slice keeps well refrigerated and can be stored in an airtight container for up to 5 days.

