In this edition of Chef's corner with Gareth Johns, we find out about his classic cauliflower soup. Ingredients 1kg Cauliflower trimmings/stems, chopped 1 large onion, diced 1 large potato, diced/grated 50g Welsh Butter (or oil) Halen Mon Sea Salt Pepper Pinch of cinnamon 1 ½ l stock or water Sweat...