Recipe Main Dish br br Looking for ideas to cook butternut squash? Forget about soups and purées, try this butternut tartiflette! An easy recipe that requires only 4 ingredients. A great alternative to the classic tartiflette. Here, we enjoy replacing traditional potatoes with the slightly sweeter flesh of butternut squash, potimarron, or pumpkin. The idea is simply to fill your squash with smoked bacon, onion, and Reblochon cheese.