Extra Special Oysters with Champagne Granité Ingredients 475ml Champagne 120ml Champagne vinegar 1 shallot, very finely chopped salt 1 tbsp 1 tbsp sugar 1/2 tsp chili flakes 550g rock salt, for serving (optional) 12 oysters Method Combine all of the ingredients, except the oysters, in a saucepan and bring to a simmer. Stir until all of the sugar and salt ...