Now that winter has set in along the Wasatch Range, it's nice to have portable hot beverages now and then. Do you have any insights for a leak-proof, lightweight thermos? One I recently received from Eddie Bauer keeps the contents warm or cold as necessary, but it leaks all overcertainly not something I could put in my pack and take into the backcountry. What kind of thermos flasks do they use for making tea on big climbs up Everest? Chris Park City, Utah
REI sells a very nice stainless-steel vacuum bottle in both one- and half-liter sizes, complete with a tough plastic threaded cap and insulated cup. The liter model goes for $28, the half-liter for $24 (www.rei.com). L.L. Bean sells similar-sized bottles for $19 and $22, respectively, plus a big 48-ounce model for $29 (www.llbean.com).
Mix all these ingredients in a saucepan and heat until blended. Pack along a little whipped cream, too, for topping it off! Better yet, add a few ounces of good bourbon before serving.