Backcountry appetite is a strange thing. On a long day of climbing switchbacks at altitude, your body burns through thousands of calories but your stomach often shuts down — solid food suddenly feels like a chore. That's the gap powdered meal-replacement drinks fill, and it's why Backpacker's backcountry eggnog recipe has made it into the publication's seven-day meal plan that fits entirely inside a single bear canister.

The idea is simple: everything goes into the bag at home, and at camp you just add water and shake. Each serving weighs 4.2 oz (119 g) and packs a dense hit of calories from whole milk powder, coffee creamer powder and whole egg crystals, with brown sugar, cinnamon, nutmeg and a pinch of salt rounding out the festive flavour. Home prep takes two minutes; camp prep takes one.

The texture is adjustable. Use 5 oz (150 mL) of cold water for a thick, traditional eggnog consistency, or go up to 8 oz (240 mL) for something thinner and more milk-like. Shake hard, let it sit briefly, then shake again — that second round breaks up the clumps that powdered dairy always seems to form.

There's some clever kit advice in the recipe too. A wide-mouth, leakproof jar — a repurposed Talenti gelato tub or large peanut butter jar is the classic move — beats a narrow-mouth water bottle for both shaking and cleaning. Dropping in a shaker ball helps, or you can go low-tech: shake hard, then finish off any remaining powder with a spork.

Why should a traveller care? Because this isn't just for hardcore through-hikers. It works for anyone heading into the backcountry — trekkers in the Alps, hikers tackling hut-to-hut routes, winter campers who need warm-blooded calories fast. It's also a genuinely seasonal bonus: a creamy, spiced eggnog at 3,000 metres is a morale boost that freeze-dried meals can't match, and unlike the fresh stuff, it won't spoil in your pack. At 4.2 oz a serving, it earns its weight, and the ingredients are cheap enough to find in most supermarkets. Even if eggnog in September sounds odd, the formula — milk powder, creamer, egg crystals, sugar, spice — is a template you can adapt into vanilla, mocha or chai-style shakes with whatever you have on the shelf.

One practical note: recipes like this rely on pasteurised whole egg crystals, not raw eggs, so buy the dried product rather than improvising. And if you're carrying it in bear country, follow local rules on storing food and scented items — the bear canister is part of the plan for a reason.