Defrost frozen shrimp. Rinse shrimps briefly and drain. Stir yoghurt, salad cream, ketchup and brandy until smooth. Season to taste with salt, pepper and sugar
Clean and wash the spring onions and tomatoes. Cut spring onions into fine rings, halve tomatoes. Peel, halve and stone the avocado. Cut the flesh into slices and immediately sprinkle with lemon juice
Mix vegetables and shrimps loosely. Pour into 4 glasses and pour the cocktail sauce over them. Garnish with chervil if desired. Tastes good with
Avocados are optimally ripe for consumption when the skin gives way under slight pressure and you can hear the stone when shaking the avocado: simply replace the avocado with 1/2 cucumber