Cook the Book: Bloody Mary Flank Steak

Name: Cook the Book: Bloody Mary Flank Steak
Ingredients: 1 cup vegetable juice (Guy recommends V8); 1/2 cup vodka; 1 teaspoon fine sea salt, plus more for seasoning; 1 teaspoon freshly ground black pepper, plus more for seasoning; 1 teaspoon hot sauce (Guy recommends Tabasco); 1 tablespoon fresh lemon juice; 1 tablespoon Worcestershire sauce; 2 garlic cloves, crushed; 1 teaspoon onion powder; 1 teaspoon ground celery seed; 1 tablespoon prepared horseradish; 1/4 cup olive oil; 1 pound flank steak; Small celery stalks and leaves, and grilled tomatoes, for garnish (optional)