Oysters On The Half-Shell With Grapefruit Granita

• 1 cup fresh grapefruit juice (from 1 or 2 large grapefruit, preferably pink)
• 3 tablespoons Champagne vinegar
• 1/2 tablespoon sugar dissolved in 1/2 tbsp. hot water
• 1/2 tablespoon vodka
• 1/2 teaspoon finely chopped tarragon
• 1/2 teaspoon chopped flat-leaf parsley
• 1/2 teaspoon freshly ground black pepper
• Rock salt or crushed ice (see Notes)
• 3 dozen chilled small to medium oysters on the half-shell

1. Combine all ingredients except rock salt and oysters, pour into a loaf pan (to a depth of about 1 in.), and freeze 1 hour. Rake and crush mixture with the tines of a fork and freeze for another hour. Rake and crush mixture again and freeze 1 hour more.
2. Spread rock salt on a platter. Rake and crush granita a final time into fine crystals. Set oysters in place and top each with a spoonful of granita.
3. Note: Nutritional analysis is per serving.

fresh grapefruit juice, vinegar, sugar, vodka, tarragon, flatleaf parsley, freshly ground black pepper, salt, oysters

Taken from www.myrecipes.com/recipe/oysters-on-half-shell-with-grapefruit-granita (may not work)