Mix potato pancake batter and egg. Line a baking tray with baking paper and brush with oil. Put 20 small potato piles on the baking tray and press them flat a little with a spoon. Bake in the preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: level 3) for 20-25 minutes. Turn the potato pancakes halfway through. Mix the sour cream, mayonnaise and lemon juice.
Season to taste with salt, pepper and sugar. Wash the dill, dab dry and chop finely, except for a little to garnish. Stir the chopped dill into the cream. Drain the crabs and fold in. Serve the potato pancakes together with the crab and dill cream. Garnish with dill
With 8 people: