Vegetarian Sweet Potato Canapes are bursting with flavours of garlic and smoked paprika! The beauty of these canapes is that it requires very little hands-on time and no decorating skills. The sweet potato gratin is cooked in a square roasting tin, then cooled and cut into pieces. All we do to make the canapes look pretty is pipe a rosette of creme fraiche and sprinkle the top with some more smoked paprika!