Lobster Cocktail Parfaits - The Local Palate

Ingredients

• 1½ cups ketchup
• ¼ cup prepared horseradish
• 1 teaspoon vodka
• 1 teaspoon Worcestershire sauce
• 1 tablespoon freshly squeezed lemon juice
• Salt and freshly ground black pepper
• 2 lemons, pith and rind removed, sectioned
• Cocktail sauce (recipe above)
• 2 cups cooked lobster knuckles or tail meat cut into ½-inch pieces
• 3 ripe avocados, peeled, pitted, and diced
• 1 cup cocktail sauce
• 15 celery heart leaves