Select fresh berries, wash and drain on a sieve (defrost frozen berries)
mix berries with vanilla sugar and lime or lemon juice, up to 1 teaspoon, and leave to stand for about 30 minutes
Beat the egg white with a hand mixer until very stiff. Let the sugar trickle in. Add the rest of the citrus juice
Place the marinated berries in 4 small fireproof dishes. Spread the meringue mixture cloudy over them and sprinkle with almond slivers
Bake the berries in a preheated oven (electric cooker: 200 °C/ circulating air: 175 °C / gas: level 3) for approx. 10 minutes until golden brown. Decorate with lime slices as desired. Serve hot or cold