Mini Chocolate Espresso Mousse Cups
Silky dark chocolate mousse laced with espresso, spooned into little cups and topped with whipped cream.
Prep: 20 · Cook: · Total: 20 · Serves: 6 · Difficulty: Medium · Rating: 4.9/5 (289 reviews)
INSPIRED BY
A memory of tiny mousse cups in a Parisian bistro window, translated into something I could make in twenty minutes on a Tuesday.
Story
My grandmother had a recipe for chocolate mousse that involved fussing over the stovetop and a rain of curses when the yolks scrambled. I loved her version but not the process. This one is a gentler cousin: still rich, still airy, but forgiving enough that I have been making it for last minute dinner parties for years without a single scramble. The espresso is the twist. It does not make the mousse taste like coffee; it just deepens the chocolate into something that feels grown up and elegant. Twenty minutes of active work, a couple of hours in the fridge, and you have a dessert that punches so far above its weight class it is almost unfair.
By Casey
Ingredients
- 6 oz good quality bittersweet chocolate (60 to 70 percent), chopped
- 1 tbsp instant espresso powder
- 2 tbsp hot water
- 3 tbsp unsalted butter
- 3 large eggs, separated, at room temperature
- 2 tbsp granulated sugar
- Pinch of fine sea salt
- 1 tsp vanilla extract
- 1/2 cup heavy cream, cold
- 2 tbsp powdered sugar, for the whipped cream
- Chocolate shavings or espresso beans, for garnish
Instructions
- Combine the chopped chocolate, butter, espresso powder, and hot water in a heatproof bowl. Set it over (not touching) a pan of simmering water and stir gently until smooth. Remove from the heat and let it cool for 5 minutes.
- Whisk the egg yolks into the slightly cooled chocolate mixture, one at a time, until glossy and fully combined. Stir in the vanilla and pinch of salt.
- In a clean bowl, beat the egg whites with an electric mixer on medium until soft peaks form. Sprinkle in the granulated sugar and continue beating until you have glossy, stiff peaks. Do not overbeat.
- Fold a third of the beaten whites into the chocolate mixture to lighten it. Then gently fold in the remaining whites in two additions, using a spatula and turning the bowl as you go. Stop as soon as you see no white streaks.
- Spoon or pipe the mousse into 6 small cups or glasses. Cover and refrigerate for at least 2 hours (or up to 24) to set.
- Just before serving, whip the cold heavy cream with the powdered sugar to soft peaks. Dollop on each mousse cup and finish with chocolate shavings or a single espresso bean on top.
Chef Tips
- Use the best chocolate you can find. This mousse has nowhere for lesser chocolate to hide.
- Room temperature eggs whip taller and fold in more easily. If yours are cold, set them in warm water for 5 minutes first.
- Fold, do not stir. The whites are there to keep the mousse airy. Aggressive stirring flattens it into pudding.
- The mousse will keep, covered, for 2 days. Add the whipped cream fresh at serving time so it stays lofty.
Cook's Notes
- **Chocolate percentage:** 60 to 70 percent bittersweet is the sweet spot. Semisweet works but the mousse turns sweeter overall.
- **Cooling the chocolate:** Warm chocolate scrambles yolks. Aim for pleasantly warm to the touch, not hot.
- **Whipping whites:** Use a spotlessly clean bowl with zero grease. Even a speck of yolk will keep whites from lofting.
- **Serving size:** These are rich. Six generous or eight modest servings both work.