When cooking butternut squash, don't throw out the seeds when you can roast them into these tasty treats. The warm aroma of cinnamon and vanilla fills our home while these roast. They are crispy and have just the right balance of flavors. This recipe calls for butternut squash seeds, but the seeds of any other winter squash could be substituted such as pumpkin, acorn, hubbard, etc. Do note, however, that larger seeds will take a bit longer to roast.