# Easy Chocolate Mousse

Chocolate mousse is a silky, airy dessert that tastes deep and rich but feels light on the tongue. This version has just a few ingredients and no raw eggs.

It starts with a smooth chocolate ganache base that is folded into softly whipped cream. It takes 30 minutes of work and then chills until it sets. It serves 6.

- Total time: 30 min (prep 25 min, cook 5 min)
- Serves: 6
- Per serving (estimated): 380 kcal, 4 g protein
- Cuisine: French. Category: Dessert. Diet: vegetarian, gluten-free.

## Ingredients

- 170 g bittersweet chocolate (60 to 70% cocoa), finely chopped
- 120 ml heavy cream, for the base (1/2 cup)
- 1 tsp vanilla extract
- 1/8 tsp fine salt
- 300 ml cold heavy cream, for whipping (1 1/4 cups)
- 2 tbsp granulated sugar
- Shaved chocolate or berries, for serving

## Method

1. Put the 170 g chopped chocolate in a large bowl.
2. Heat 120 ml cream in a small saucepan over medium heat until steaming with small bubbles at the edge, about 180°F (82°C). Do not let it boil hard.
3. Pour the hot cream over the chocolate, wait 2 minutes, then stir slowly until smooth and glossy. Stir in the vanilla and salt.
4. Cool the chocolate base to lukewarm, about 85°F (29°C), stirring occasionally, about 15 minutes. It should feel barely warm.
5. In a chilled bowl, whip 300 ml cold cream and the sugar to soft peaks, so that the cream droops slightly when you lift the whisk.
6. Stir one quarter of the whipped cream into the chocolate base to lighten it.
7. Gently fold in the rest of the cream with a spatula until no streaks remain. Stop as soon as it looks even.
8. Spoon or pipe into 6 small glasses. Chill at least 3 hours, until set and creamy.
9. Top with shaved chocolate or berries before serving.

## Why it works

- Melting the chocolate in hot cream makes a smooth ganache, with no scorching or grainy bits.
- Cooling the ganache before folding stops it from melting the whipped cream.
- Whipping the cream only to soft peaks keeps it fluffy and silky, not stiff or grainy.
- Folding a quarter of the cream in first lightens the base, so the rest folds in without deflating.
- Chilling for 3 hours lets the cocoa butter in the chocolate set, which gives the mousse its soft, sliceable body.

## The science

- **Why cool the chocolate base.** Warm chocolate melts the fat in whipped cream and deflates the air bubbles you worked to make. Cooling the ganache to about 85°F (29°C) keeps it liquid but cool enough to fold in without losing volume.
- **Why soft peaks.** Whipping cream traps air in a network of fat droplets. Stopped at soft peaks, the foam is still flexible and folds easily. Whipped stiff, the fat clumps and the mousse turns grainy and stiff after folding.
- **Why chocolate sets.** Cocoa butter is solid at cool temperatures. Chilling the mousse solidifies the cocoa butter and fat droplets, which locks in the air bubbles and gives the mousse a creamy, set texture that melts at mouth temperature.

## Tips

- Chill the bowl and whisk for faster whipping.
- Use good bittersweet chocolate, since the flavor is all you taste.
- Fold with a wide spatula, scraping the bottom of the bowl.

## Mistakes to avoid

- Folding in warm chocolate melts the cream and makes a runny mousse, so cool it first.
- Overwhipping the cream makes the mousse grainy, so stop at soft peaks.
- Stirring hard instead of folding knocks out the air, so use gentle strokes.

## Variations and swaps

- Add 1 tbsp instant espresso powder to the cream for mocha mousse.
- Stir in 1 tbsp orange liqueur or orange zest.
- Layer with crushed cookies in glasses.
- Swap bittersweet chocolate for semisweet for a sweeter mousse, and skip the sugar.
- Swap the vanilla for 1 tbsp coffee liqueur.
- Swap heavy cream for whipping cream with at least 35 percent fat.

## Storage

Cover and refrigerate for up to 3 days. Do not freeze, since the texture changes. Let it sit 10 minutes at room temperature before serving for the best texture.

## FAQ

**Does this chocolate mousse have raw eggs?**

No. It uses a cooked chocolate ganache folded into whipped cream, so there are no raw eggs. That makes it safe for everyone.

**Why is my chocolate mousse grainy?**

The cream was overwhipped or the chocolate base was too cold and seized. Whip only to soft peaks and fold while the base is still lukewarm.

**Why is my chocolate mousse runny?**

The chocolate base was too warm and melted the cream, or the mousse needs more time. Cool the base to about 85°F (29°C) and chill at least 3 hours.

**What chocolate is best for mousse?**

Use a bittersweet bar with 60 to 70 percent cocoa. Chips contain stabilizers and do not melt as smoothly.

**Can I make chocolate mousse ahead?**

Yes. It needs at least 3 hours to set, and it is best made up to 2 days ahead. Keep it covered in the fridge.

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Source: https://cookingscientist.com/recipes/chocolate-mousse (Cooking Scientist). Learn the science of cooking in the Cooking Scientist app for iPhone and iPad: https://apps.apple.com/app/id6830326846