Shrimp Cocktail with Bloody Mary Sorbet

Name: Shrimp Cocktail with Bloody Mary Sorbet
Ingredients: 3 tablespoons sugar; 4 ripe plum tomatoes—peeled, seeded and coarsely chopped; 1/2 cup tomato juice; 1 1/2 tablespoons tomato paste; 1 tablespoon fresh lemon juice; Salt and ground white pepper; Tabasco sauce; 2 tablespoons minced fresh chives; 18 medium shrimp—shelled and deveined with the tails left on; 1/4 cup plus 2 tablespoons savory greens juice; 2 tablespoons dry vermouth; 2 tablespoons sour cream; 6 cilantro sprigs and 6 celery ribs with leafy tops, for garnish