Cheese Croquets Fried in Tempura Batter

Name: Cheese Croquets Fried in Tempura Batter
Ingredients: For the tempura batter; 1 1/2 cups unbleached all-purpose flour; 1/2 cup cornstarch; 2 large egg yolks; 1 cup vodka; 1 cup seltzer water; For the Cheese Croquets; 6 ounces white Cheddar cheese, shredded; 6 ounces Fontina cheese, shredded; 3 large egg whites plus 1yolk; 1/2 teaspoon Herbes De Provence; 1/2 teaspoon freshly ground black pepper; 1/4 teaspoon cayenne pepper; 1/2 teaspoon garlic powder; 1 tablespoon lemon zest; 2 tablespoons flour for dredging the croquettes; vegetable or canola oil for frying