Defrost frozen crabs. Rinse and drain the crabs. Drain the mandarins, catching the juice. Clean, wash and cut the salad into thin strips
Mix yoghurt, mayonnaise and 2 tbsp. mandarin juice. Season to taste with salt, pepper and lemon juice. Wash the dill, shake dry and chop finely, except for a little to garnish. Mix salad, shrimps, mandarins, dill and sauce
Spoon the crab cocktail into 4 glasses. Garnish with lemon wedges and remaining dill. Serve with roasted toast with butter
Drink: dry sherry