This velvet chocolate mousse offers an adult balance of bitter cocoa and a whisper of fruit from olive oil, transformed into a silky, aerated custard rather than a classic whipped mousse. Chef Joshua Pinsky’s method relies on a warm egg-cream base that melts bittersweet chocolate gently, then a careful blend and a final stream of olive oil that builds glossy texture. Crisp candied hazelnuts add crunch and a contrasting sweetness, though plain toasted nuts work just as well if you prefer a simpler finish. This version is ideal for dinner parties when you want an elegant make-ahead dessert with deep chocolate flavor and refined mouthfeel.
Which ingredients do you need for this chocolate mousse?
This recipe yields about 6 to 8 servings and centers on high-quality bittersweet chocolate for depth. You will also use egg yolks, a small amount of corn syrup to stabilize the texture, cream and milk for the custard base, plus butter and olive oil for sheen and silkiness. The candied hazelnuts require just three pantry staples and add that essential crunchy contrast that makes each spoonful memorable. Exact quantities and simple notes are shown in the table below for easy reference when shopping or prepping.
| Ingredient | Amount | Notes |
|---|---|---|
| Egg yolks | 2 large | Room temperature for even cooking |
| Heavy cream | 1 cup / 240 g | Scald with milk for the custard |
| Whole milk | ½ cup / 125 g | Combine with cream for tempering |
| Corn syrup | ¼ cup / 85 g | Helps create a smooth, stable texture |
| Bittersweet chocolate | 7 oz / 200 g | 65–75% cocoa recommended |
| Unsalted butter | ¼ cup / 56 g | Room temperature, cubed |
| Vanilla extract | 1 tsp | Pure vanilla for depth |
| Kosher salt | ½ tsp (or ¼ tsp fine) | Balances the chocolate |
| Olive oil | 1½ tbsp | Gives sheen and a slight fruity note |
| Raw hazelnuts | 1 cup / 140 g | For candied topping |
| Sugar | ½ cup / 100 g | Caramelizes for the nuts |
| Salt for nuts | ¼ tsp kosher (or ⅛ tsp fine) | Sprinkled after coating |
How does this method change the texture compared with classic mousse?
Traditional mousses often rely on whipped egg whites or whipped cream for lift, which gives a light, airy volume. This recipe produces an aerated chocolate custard by first heating a cream-and-egg yolk base, which melts chocolate fully and creates a denser, silkier body. The result feels richer and more velvety on the palate than most whipped mousses.
Tempering the yolks with warm cream prevents scrambling and ensures a safe, smooth custard. Heat the cream-milk mixture until small bubbles form at the edge and faint steam rises, then gradually whisk a cup of it into the yolks before returning the mixture to the pot. That careful heat control creates a stable base that will support the chocolate without graininess.
Final blending and the slow addition of olive oil make the surface glossy and contribute a subtle fruity note that cuts the chocolate’s bitterness. Passing the finished mousse through a fine sieve removes any tiny solids and guarantees a silky mouthfeel. Chilling for at least four hours helps the mousse set while preserving that elegant texture.
How do you make the candied hazelnuts?
Candied hazelnuts provide a crunchy counterpoint and take only a few focused steps. Begin by toasting raw hazelnuts in a hot oven until fragrant, then rub most of the skins off while they are still warm. Halve or coarsely chop the nuts so you get bite-size pieces that adhere to caramel more easily.
Caramelization requires attention, not stirring after the boil begins, and occasional swirling to avoid burning. After the sugar turns a rich amber, stir in the nuts, coat them quickly, then spread them out to cool and harden on a lined rimmed sheet. Sprinkle with a little salt once the caramel sets for a refined sweet-salty contrast.
- Tip: keep a small bowl of water and a pastry brush nearby to wash down sugar crystals on the pot’s sides.
- Tip: if you prefer less mess, you can toast and simply chop nuts, then toss them with a little melted sugar or honey.
Can the mousse be prepared ahead and what are the best serving tips?
Yes, the mousse benefits from resting and can be made the day before service. Pass the blended mixture through a fine sieve, press plastic wrap gently to minimize condensation, and chill for a minimum of four hours or overnight for best texture. Leftovers will keep refrigerated for up to four days.
When ready to serve, you can spoon the mousse into bowls straight from the fridge; a quick gentle stir restores any lost sheen and loosens the texture if it has set matte. Top each portion with candied hazelnuts or a sprinkle of toasted nuts if you skipped the caramel step. For a finishing flourish, add a small pinch of flaky salt or a thin drizzle of high-quality olive oil for contrast before serving.
Samuel Knox writes about desserts with a focus on comfort and simplicity. His recipes highlight homemade sweets that are easy to prepare and meant to be shared.
