Black Futsu is a Japanese heirloom squash. It has a beautiful chestnut color and is about the size of an Acorn squash. The squash has deep ribbing and easily cut into slices for roasting. You can eat the skin! Its flesh is golden color and has the rich taste of hazelnuts, that is sweet and buttery roasted or light and fruity raw. Delicious julienned and quick-cured with salt in a winter slaw or pickled!