Nature's Flavors English Toffee Flavor Concentrate contains a very rich and full-bodied flavor. It's very strong, so a little goes a long way. English Toffe Flavor Concentrate is excellent for baked goods at about 1 to 5% usage, depending on how hot and how long you bake it for. It is also good in ice cream, sorbets, shakes, sauces, beverages, puddings, and yogurts.