Rocco DiSpirito's applesauce recipe manages to turn three ingredients into a wonderfully sweet, delectable and comforting dish. It's an ideal low-calorie recipe for whenever those sweet cravings arise. Six apple slices are only 39 calories! Aside from vitamin C, apples contain pectin, which is a natural fiber that slows down digestion and makes you feel full for an extended period of time. Considering how comforting this homemade apple sauce is, it's a go-to negative calorie food everyone should try.