Mix flour, milk, 1/8 litre water, eggs, egg yolk and salt vigorously and pass through a sieve. Leave to swell for 20 minutes. Wash and clean the strawberries, cut them into thin slices and mix with the vanillin sugar.
Heat some oil in a coated pan. Bake about 4 thin crépes one after the other. Drizzle with liqueur and fill with strawberries. Arrange the crêpes with 1 scoop of ice cream each and dust with icing sugar.
Serve garnished with lemon balm.