Nature's Flavors Black Walnut Flavor Concentrate contains a very rich and full bodied flavor. Black Walnut Flavor Concentrate is very strong, so a little goes a long way. This flavor is excellent for baked goods at about 1 to 5% usage depending on how hot and long you bake. Black Walnut Flavor Concentrate works wonders in ice creams, sorbets, ices, shakes, sauces, beverages, puddings, and yogurts.