
Ingredients
For the Salted Caramel:
- 1 cup (200g) granulated sugar
- 6 tbsp (90g) unsalted butter, cubed
- 1/2 cup (120ml) heavy cream, at room temperature
- 1 tsp sea salt (or to taste)
For the Chocolate Mousse:
- 8 oz (225g) dark chocolate (70% cocoa), chopped
- 3 tbsp unsalted butter
- 3 large eggs, separated
- 1/4 cup (50g) granulated sugar
- 1 1/4 cups (300ml) heavy cream
- 1 tsp vanilla extract
- Pinch of salt
For Assembly and Garnish:
- 1/2 cup heavy cream for whipping
- 1 tbsp powdered sugar
- Flaky sea salt for garnish
- Dark chocolate shavings (optional)
- Caramel sauce for drizzling
Instructions
Make the Salted Caramel:
- Place sugar in a heavy-bottomed saucepan over medium heat.
- Stir constantly until sugar melts and turns a deep amber color (about 8-10 minutes).
- Immediately add butter, whisking vigorously until melted and combined.
- Slowly pour in cream while whisking continuously (mixture will bubble vigorously).
- Remove from heat and stir in sea salt.
- Let cool completely before using. Reserve 1/4 cup for mousse and remainder for serving.
Prepare the Chocolate Mousse:
- Melt chocolate and butter in a double boiler or microwave in 30-second intervals, stirring until smooth.
- Let cool slightly, then whisk in egg yolks one at a time until well combined.
- Stir in 1/4 cup of the cooled salted caramel and vanilla extract.
Whip the Components:
- In a clean bowl, whisk egg whites with a pinch of salt until soft peaks form.
- Gradually add sugar and continue whisking until stiff, glossy peaks form.
- In another bowl, whip heavy cream until soft peaks form.
Fold the Mousse:
- Gently fold 1/3 of the whipped cream into the chocolate mixture to lighten it.
- Fold in the remaining cream in two additions, being careful not to deflate.
- Finally, fold in the egg whites in two additions until just combined.
Assemble the Cups:
- Spoon or pipe mousse into 6-8 serving glasses or ramekins.
- Create a small well in the center of each mousse cup.
- Drizzle a spoonful of salted caramel into each well.
- Refrigerate for at least 3 hours or overnight.
Prepare the Garnish:

- Just before serving, whip heavy cream with powdered sugar until soft peaks form.
- Pipe or dollop whipped cream on top of each mousse cup.
- Drizzle with additional caramel sauce.
- Sprinkle with flaky sea salt and chocolate shavings if desired.
Expert Tips
Caramel Success:
- Watch Carefully: Sugar can go from perfect to burnt quickly
- Room Temperature Cream: Prevents seizing when added to hot caramel
- Consistent Stirring: Prevents crystallization and ensures even melting
Mousse Technique:
- Temperature Matters: Let chocolate cool slightly before adding eggs to prevent scrambling
- Gentle Folding: Use a rubber spatula and fold from bottom to top to maintain airiness
- Clean Bowls: Any grease will prevent egg whites from whipping properly
Texture Perfection:
- Don’t Overwhip: Cream should hold soft peaks, not be stiff
- Gradual Incorporation: Add whipped components gradually to maintain volume
- Chill Time: Allow adequate setting time for best texture
Make-Ahead Instructions
- Caramel: Can be made up to 1 week ahead; store covered at room temperature
- Mousse: Prepare up to 2 days ahead; cover with plastic wrap directly touching surface
- Assembly: Complete cups can be made 1 day ahead, add garnish just before serving
Flavor Variations
Bourbon Salted Caramel:
- Add 2 tablespoons bourbon to caramel after removing from heat
Espresso Chocolate Mousse:
- Add 1 tablespoon instant espresso powder to melted chocolate
White Chocolate Version:
- Substitute white chocolate for dark chocolate and reduce caramel slightly
Vegan Alternative:
- Use aquafaba instead of egg whites and coconut cream instead of dairy cream
Presentation Ideas
- Individual Glasses: Use clear glasses to show beautiful layers
- Mason Jars: For a rustic, portable presentation
- Chocolate Cups: Serve in tempered chocolate bowls for extra indulgence
- Garnish Options: Fresh berries, gold leaf, or candied nuts
Storage
- Refrigeration: Keep covered for up to 3 days
- Freezing: Not recommended as texture will change
- Serving Temperature: Best served chilled but can sit at room temperature for 30 minutes before serving
Troubleshooting
Caramel Issues:
- Crystallized Sugar: Start over with clean pan and utensils
- Seized Caramel: Gently reheat while whisking to smooth out
Mousse Problems:
- Grainy Texture: Chocolate was too hot when eggs were added
- Deflated Mousse: Overmixed or components were folded too vigorously
Prep Time: 45 minutes
Chill Time: 3 hours minimum
Total Time: 3 hours 45 minutes
Serves: 6-8 people
Difficulty: Intermediate