Parboil – Parboiling is set apart from blanching in that you skip the polar bear plunge into icy water after the item it boiled. Parboiling is usually used to precook an item which will then be cooked another way such as braising, grilling or stir-frying. A classic example is the parboiling of bell peppers in advance of stuffing and then baking them. Some vegetable benefit from parboiling to eliminate bitterness, such as asparagus.