Originally invented by founder Sarah Collins in South Africa with the intention of conserving cooking energy in developing nations, this cordless, power-free, gas-free slow cooker might just change the way we slow-cook forever. Although our slow cookers are tried and true instruments in our kitchen, the notion of leaving an electrical appliance running hot while we sleep or leave our homes has always made us a little nervous, to be honest. The Wonderbag removes that worry, saves electricity and -- the best part -- actually works. You start anything you cook in the Wonderbag on the stove (recipes range from beef stew to oatmeal to greens and beyond), bringing your pot to a boil for around five minutes. Turn off the heat, seal the pot and pop it in the Wonderbag for your desired amount of time. A tender beef stew will take about four hours, but you can leave your food in the Wonderbag for up to 12 hours without it falling below a safe temperature.
Wonderbag