Decadent Oreo Chocolate Mousse Cups (No-Bake & Utterly Dreamy)

These Oreo Chocolate Mousse Cups are one of those desserts that look like they took hours to prepare but come together in under 30 minutes with no baking required. Rich, velvety chocolate mousse is layered over a buttery crushed Oreo base, finished with a generous swirl of whipped cream and extra Oreo crumbles on top. Every spoonful delivers that perfect combination of creamy, crunchy, and deeply chocolatey — and every single person at the table will be asking for the recipe.

Whether you are making these for a dinner party, a weekend treat, or a special occasion, these individual dessert cups are guaranteed to impress. They are elegant, indulgent, and surprisingly simple to put together — which is exactly why this recipe has quickly become a firm favourite.

Why You Will Love This Recipe

• Completely no-bake — no oven required
• Ready in under 30 minutes, plus chilling time
• Made with simple, easy-to-find ingredients
• Individual servings make them perfect for entertaining
• Rich, creamy, and deeply chocolatey in every single layer
• Can be prepared a day ahead, making them ideal for parties

Ingredients You Will Need

For the Oreo Base

• 200g Oreo biscuits (about 18–20 biscuits)
• 50g unsalted butter, melted

For the Chocolate Mousse

• 150g dark chocolate (70% cocoa), finely chopped
• 200ml double cream (for the ganache)
• 300ml double cream, cold (for whipping)
• 200g full-fat cream cheese, softened
• 50g icing sugar, sifted
• 1 tsp vanilla extract
• Pinch of fine salt

For the Topping

• 150ml double cream, cold
• 2 tbsp icing sugar
• Extra Oreo biscuits, crushed or whole, to decorate
• Chocolate shavings or cocoa powder, to finish (optional)

How to Make Oreo Chocolate Mousse Cups

Step 1 — Make the Oreo Base

Place the Oreo biscuits into a zip-lock bag and crush them into fine crumbs using a rolling pin, or blitz them briefly in a food processor. Transfer the crumbs to a bowl and stir in the melted butter until the mixture resembles wet sand. Divide the mixture evenly between 6 serving glasses or dessert cups — approximately 2–3 tablespoons per cup. Press down gently to form a compact base. Place in the fridge while you prepare the mousse.

Step 2 — Make the Chocolate Ganache Base

Place the finely chopped dark chocolate into a heatproof bowl. Heat 200ml of double cream in a small saucepan over medium heat until it just begins to simmer — do not let it boil. Pour the hot cream over the chopped chocolate, leave to sit for one minute, then stir gently until completely smooth and glossy. Set aside to cool to room temperature, about 20–25 minutes. Do not rush this step — adding warm ganache to whipped cream will deflate the mousse.

Step 3 — Whip the Cream and Make the Mousse

In a large, cold mixing bowl, beat 300ml of cold double cream to soft peaks using a hand mixer or stand mixer. In a separate bowl, beat the softened cream cheese with the sifted icing sugar, vanilla extract, and a pinch of salt until completely smooth and fluffy. Gently fold the cooled chocolate ganache into the cream cheese mixture until well combined. Then carefully fold in the whipped cream in two or three additions, using a large spatula and a gentle folding motion to keep as much air in the mousse as possible.

Step 4 — Assemble the Cups

Spoon or pipe the chocolate mousse over the chilled Oreo bases, dividing it evenly between all six cups. Smooth the tops gently with the back of a spoon, or leave swirled for a more rustic finish. Cover each cup with clingfilm and refrigerate for a minimum of 2 hours, or overnight if preparing ahead.

Step 5 — Add the Whipped Cream Topping

Just before serving, whip the remaining 150ml of cold double cream with the icing sugar to stiff peaks. Transfer to a piping bag fitted with a large star nozzle and pipe a generous swirl on top of each mousse cup. Finish with crushed Oreo crumbs, a whole Oreo biscuit pressed into the cream, and a scattering of chocolate shavings if desired.

Tips for the Perfect Oreo Chocolate Mousse Cups

• Use cold double cream straight from the fridge — cream whips far better when cold, giving you a lighter, fluffier mousse
• Allow the chocolate ganache to cool completely before folding it into the whipped cream — warm chocolate will cause the cream to deflate
• Use good quality dark chocolate for the richest, most satisfying flavour — a 70% cocoa bar works beautifully here
• Do not overmix when folding the whipped cream into the mousse — slow, gentle folds preserve the airy texture
• For the cleanest presentation, use clear glass dessert cups so the layers are visible
• These cups are even better the next day once fully set — the flavours deepen beautifully overnight

Make Ahead and Storage

These Oreo Chocolate Mousse Cups are an ideal make-ahead dessert. The assembled cups (without the whipped cream topping) can be made up to 24 hours in advance and stored covered in the refrigerator. Add the whipped cream topping and decorations just before serving for the best presentation. Leftover cups will keep in the fridge for up to 3 days, though the Oreo base will soften slightly over time.

Variations to Try

• Milk chocolate mousse — Swap the dark chocolate for milk chocolate for a sweeter, creamier result that works wonderfully for children
• White chocolate mousse — Use white chocolate in place of dark for a completely different but equally indulgent flavour
• Peanut butter twist — Stir 2 tablespoons of smooth peanut butter into the cream cheese mixture before folding in the chocolate ganache
• Mint chocolate — Add a few drops of peppermint extract to the mousse and use mint Oreos for the base

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Frequently Asked Questions

Can I make these without cream cheese?

Yes. The cream cheese adds richness and helps stabilise the mousse, but it can be left out if preferred. Simply fold the cooled ganache directly into the whipped double cream for a slightly lighter mousse.

Can I use milk chocolate instead of dark?

Absolutely. Milk chocolate will give a sweeter, gentler flavour. Keep in mind that milk chocolate ganache sets a little softer than dark chocolate, so allow a little extra chilling time.