White Chocolate Mousse Tartlets (Printable Version)

Delicate pastry shells filled with silky white chocolate mousse, topped with fresh mixed berries for an elegant French dessert.

# What You'll Need:

→ For the Tartlet Shells

01 - 1 1/4 cups all-purpose flour
02 - 1/4 cup powdered sugar
03 - 1/4 tsp fine sea salt
04 - 1/2 cup cold unsalted butter, cubed
05 - 1 large egg yolk
06 - 2 tbsp cold water

→ For the White Chocolate Mousse

07 - 6 oz good-quality white chocolate, chopped
08 - 1 cup heavy cream, divided
09 - 2 large egg whites, room temperature
10 - 2 tbsp granulated sugar
11 - 1/2 tsp pure vanilla extract
12 - Pinch of salt

→ For Garnish

13 - 1 cup mixed fresh berries (raspberries, blueberries, strawberries)
14 - 2 tbsp white chocolate shavings
15 - Fresh mint leaves

# How to Make It:

01 - Pulse flour, powdered sugar, and salt in a food processor until combined. Add cold butter and pulse until mixture resembles coarse crumbs. Add egg yolk and cold water, pulsing until dough just comes together. Turn dough onto a lightly floured surface and knead briefly. Shape into a disc, wrap in plastic, and chill for 30 minutes. Preheat oven to 350°F. Roll dough to 1/8-inch thickness. Cut out circles and press into 6 (4-inch) tartlet pans. Trim excess dough. Prick bases with a fork, line with parchment, and fill with pie weights. Bake 10 minutes, remove weights and parchment, and bake 5–7 minutes more until golden. Cool completely.
02 - Place chopped white chocolate in a heatproof bowl. In a small saucepan, heat 1/2 cup heavy cream until just simmering. Pour over chocolate and let sit for 1 minute. Stir until smooth and glossy. Let cool to room temperature. In a clean bowl, beat egg whites with salt until soft peaks form. Gradually add sugar, beating to stiff peaks. In another bowl, whip remaining 1/2 cup cream to soft peaks. Gently fold whipped cream into cooled chocolate mixture, then fold in egg whites and vanilla until fully combined and airy.
03 - Spoon or pipe the mousse into cooled tartlet shells, smoothing the tops. Chill tartlets for at least 2 hours, or until set.
04 - Top each tartlet with fresh berries, white chocolate shavings, and mint leaves if desired. Serve chilled.

# Expert Tips:

01 -
  • The white chocolate mousse is impossibly light yet rich enough to feel indulgent
  • These tartlets look like they came from a fancy French patisserie but are completely doable at home
02 -
  • Room temperature egg whites whip up much better than cold ones, so take them out ahead of time
  • The mousse will seem too loose before chilling, but trust the process and give it time
03 -
  • Brush the cooled shells with melted white chocolate before filling to seal them and prevent sogginess
  • If your mousse refuses to set, it might be humid, so give it extra chilling time