If you want to make candy, you need a candy thermometer. Fortunately, it's a small investment with a big payoff! This handy kitchen gadget is invaluable for making candies like lollipops, fudge, caramels, toffee, and much more. It also doubles as a deep-fry thermometer, so you can use it to make doughnuts and other delicious deep-fried desserts. If you want to make tempered chocolate, though, you'll want to pick up a chocolate thermometer--candy thermometers aren't sensitive enough for the task of measuring chocolate. For all other candy uses, though, this is your tool!