Cabbages are large heads of compact leaves-round or elongated in shape and light or dark green, red, or white in color-formed around a thick core. They are available fresh year-round. Pick a firm, heavy head with unblemished leaves and a moist core. Store in a plastic bag in the refrigerator for 2 weeks.
For specific cabbage varieties, see Chinese cabbage, napa cabbage, and savoy cabbage.