I also like to add Slippery Elm powder to my breakfast cereal. Particularly in winter when both the cold outside and the heat inside create dryness, Slippery Elm can help protect and replenish fluids. Simply purchase some powder from a health food store (such as Nature's Grace in Honesdale) and sprinkle some in your outmeal or wherever you see fit. It is possible to make a breakfast gruel from Slippery Elm powder, but this would be very expensive unless you make the powder yourself (and since Dutch Elm disease has dramatically reduced the population, you might have trouble finding some). Anyway, add a little Maple syrup and you have a real breakfast from the trees!
One can also purchase Slippery Elm lozenges (such as Thayers). Lozenges can also be easily made at home using the Slippery Elm powder, in which case you have the ability to use whatever herbs you like. Powders of the herbs can be added and/or the lozenges can be formed with and herbal infusion or decoction as the liquid.