Rinse or defrost the shrimps and pat dry. Whip cream until half stiff, stir in mayonnaise. Peel garlic, press through and add. Wash, dab and chop the dill. Fold in dill, except for a little bit for garnishing. Season to taste with salt and pepper
Cut the avocado in half and stone it. Remove the flesh from the skin and cut into pieces. Sprinkle with lemon immediately. Mix with prawns and sauce
Wash the salad and pat dry. Arrange with the shrimp cocktail just before serving. Garnish with rest of dill
Drink: dry sherry or cool beer