Soak gelatine in cold water. Wash the limes in hot water and dry them off. Rub the skin off one fruit. Peel a long piece of skin from the other and cut it into 6 fine strips.
Squeeze both limes.
Separate eggs. Beat the egg yolks, 90 g sugar and vanillin sugar until fluffy. Stir in lime juice and grated zest. Squeeze out some of the gelatine, dissolve at low heat. Stir in 3-4 tbsp. lime cream, then stir into the rest of the cream.
Chill for 5-10 minutes until the cream begins to gel.
Separately beat egg whites and cream until stiff. Fold the cream first and then the beaten egg white into the cream. Chill for at least 2 hours.
Wash, clean and halve the strawberries. Finely puree half with 1 teaspoon sugar. Serve the lime cream with strawberries, strawberry sauce and lime strips.