Peel the prawns but do not remove the tail. Next, put the flour in a bowl, add the egg, and slowly, the lager; mix well until getting a thick dough and season. Pour generous olive oil in a pan and heat. Put the prawns one by one in the dough, roll in batter, and put immediately in the frying pan, so that they get brown. Remove and let drain; put in a serving dish garnished with some
lemon slices.