In Season: Acorn squash is at its peak from October through December, though many supermarkets carry it year-round.
What to Look For: With its ridged, dark-green skin, sweet yellow-orange flesh, and handy size, acorn squash is one of the most popular winter squashes. Choose acorn squash that is heavy for its size, with a hard skin free of blemishes.
How to Store: The squash's sturdy exterior allows it to be stored at room temperature for up to one month, or longer if kept in a cool, dark place.
Sweet, mellow acorn squash gets zing from horseradish and Granny Smith apples. This soup is also delicious when made with roasted beets or carrots in place of the squash.