This sauce is more sweet than sour, but still has a good "twang" all the same. I used pineapple chunks because I had some leftover fresh pineapple in the freezer. You can used canned, if that's what you have, but the taste just doesn't compare to the fresh! If you prefer your sauce a bit less sweet, use canned pineapple and reduce the amount of brown sugar. We just loved this recipe, so I thought some of you might, too.