Mary Berry's Retro Crab Cocktail

Name: Mary Berry's Retro Crab Cocktail
Prep time: 10 min
Cook time: 20 min
Total time: 30 min
Cuisine: American
Ingredients: an iceberg lettuce; Uc of a cucumber; 6 radishes; 1 ripe avocado; 300 grams cooked crab meat; 1 tablespoon mayonnaise; 1 wire puncture; 1 finely chopped herb, such as fennel, radish; red pepper or smoked paprika; Mary Rose; 2 tablespoons mayonnaise; 1 tbsp tomato ketchup; 1 teaspoon Worcestershire sauce; 1 lemon, extra for serving; brandy, (optional)