Fall has finally arrived and winter squash are stocked on the shelves — acorn, spaghetti, and of course, butternut. Butternut squash a must-have fall vegetable that dates back nearly 10,000 years ago.  It’s true. Archaeological evidence suggests that squash was first cultivated in what is now known as the Isthmus of Panama. Squash was one of the three main crops (known as the “Three Sisters” — maize, beans, and squash) planted by Native Americans. If you’re looking for authentic North American fall foods for your Thanksgiving feast, squash certainly qualifies. (Read more at: How Americans Became so Obsess with Pumpkins) The most noticeable difference between winter squash and summer squash, like zucchini and yellow squash, is the exterior skin. Summer squash have thin, flavorful skin you leave on and eat, while winter squash have a tough, inedible outer shell. It’s because of this shell, however, that winter squash can be…