Butternut squash (Cucurbita moschata), sometimes known in Australia and New Zealand as butternut pumpkin or gramma, and in Canada as butterscotch squash, is a type of winter squash that grows on a vine. It has a sweet, nutty taste similar to that of a pumpkin. It has tan-yellow skin and orange fleshy pulp with a compartment of seeds in the bottom. When ripe, it turns increasingly deep orange, and becomes sweeter and richer. It is a good source of fiber, vitamin C, manganese, magnesium, and potassium; and it is an excellent source of vitamin A and vitamin E.
Although technically a fruit, butternut squash is used as a vegetable that can be roasted, sautéed, toasted, puréed for soups, or mashed and used in casseroles, breads, and muffins.