3 acorn squash, unpeeled, halved through the stem and seeded (see Cook's Notes)
3 tablespoons unsalted butter, diced
3 tablespoons pure maple syrup, plus extra for serving
Good olive oil
Kosher salt and freshly ground black pepper
Flaked sea salt, such as Maldon, for serving
Acorn squash is hard to cut. To halve a whole squash, plunge the tip of the blade of a large chef’s knife into the side of the squash as far as it will go. Holding the handle of the knife, bang the squash (with the knife in it) on the board until the blade cuts all the way through.