A Wondrous Bag

Cruising sailors are always on the lookout for energy-efficient ways to prepare food, so this new take on the slow-cooker principle should prove popular. The Wonderbag is an insulated jacket that keeps food hot (or cold) for many hours and, according to the makers, will slow-cook meats and vegetables for up to 12 hours. All you do is bring the food to a boil, simmer it for a few minutes and place it within the warm embrace of the Wonderbag—no electricity required. The bag is available in several colors and in two sizes. $39.99. Wonderbag, wonderbagworld.com