Soak gelatine in cold water. Wash and dry lemons and cut 1 in half. Finely grate the zest of 1 1/2 lemons and squeeze the juice. Measure out 6 tbsp (approx. 60 ml) of juice. Separate the eggs. Whip egg yolk and sugar until creamy. Stir in lemon juice and zest
Squeeze out the gelatine and dissolve it dripping wet over a mild heat. First stir 3 tablespoons of cream into the gelatine, then stir the mixture into the remaining cream. Cool until the cream begins to gel
Wash the mint and cut into fine strips, except for something to decorate. Beat cream and egg white separately until stiff
First fold cream, then beaten egg white into the cream. Fold in mint strips. Pour lemon cream into 4 dessert glasses and chill for about 3 hours. Cut the remaining lemon half into slices. Decorate the cream with the remaining mint and lemon slices