Sorrel is a green plant with oblong leaves, sour in taste. As it is. Sorrel is added to salads, soups, sauces, various dressings. It is dried, pickled, stuffed with pastries, added to a vegetable smoothie, and on the islands of the Caribbean Gulf it is even added to tea. The French make sorrel puree, seasoning it with mustard sauce, and in England this herb is used to make a "green sauce" (a mixture of sorrel, sugar and vinegar), which is served with meat.