Mix dough and egg. Line a baking tray with baking paper, brush thinly with oil. Put about 20 small piles of dough on the baking tray and press it flat a little. Bake in the preheated oven (electric cooker: 200 °C/circulating air: 175 °C/gas: level 3) for 20-25 minutes until golden brown. Turn over after about 10 minutes.
Wash the dill and cut it finely, except for a little bit. Mix with sour cream, mayonnaise and lemon juice. Season to taste. Rinse the crabs, drain and fold in. Arrange everything, garnish with dill
Drink: cold beer and an iced aquavit