In Nature's wisdom, the plants told us. The huge green vines that had sprung up on their own, just turned brown and shrank back on their own, leaving six heavy butternut squashes dangling from their red and yellow net bags. (We'd strung them up to keep them away from the wetness of the earth and the mouths of the snails.) We cut them down and divided the harvest.
My first butternut squash, I simply seeded, roasted and scraped the flesh from the shell. Butternut is bland, a lovely gold color, but -- yawn -- not much flavor. But it was fresh and home grown. That imparts something wonderful to it, if you have the stillness and focus to be aware.