Powdered wine, that is. Just add water.
The company is Trekking-Mahlzeiten (literally, "trekking meals" in German). They're a subsidiary of Katadyn, makers of expedition quality water filters for hikers, trekkers, disaster workers and those who go where the water is too contaminated to be potable. From Katadyn's English-language website:
Trekking Mahlzeiten Speciality FoodWell, that explains who'd buy this stuff; after many long days of clambering up and down mountains, just about anything might be appetizing.
The Trekking-Mahlzeiten product range consists of complete meals, vegetarian meals, soups, vegetables and other diverse nutritional items from breakfast to dessert. Trekking-Mahlzeiten meals are used as special nutrition by many expeditions (for example Arved Fuchs/"Nordostpassage", Fjäll Räven/"Polar"). Each meal requires only water to prepare and is available in one and two-person servings. We also deliver special sizes and nutritional planning upon request.
(I'm almost tempted to buy some. Almost.)