Buttercup Squash are part of the Turban squash family (hard shells with turban-like shapes) and is a popular variety of winter squash. It has as a sweet and creamy orange flesh - much sweeter than other winter varieties. Buttercup Squash can be baked, mashed, pureed, steamed, simmered, or stuffed and can replace Sweet Potatoes in most recipes. Available year-round. Peak season lasts from early fall through winter.