Brussels sprouts, sold fresh or frozen, are small, spherical green vegetables, usually 1-2 inches (2.5-5 cm) in diameter. They are related to cabbage and resemble cabbage in both appearance and flavor. The best brussels sprouts are small with tight heads and no odor. They are most flavorful if purchased still on the stalk; trim off just before cooking. Store for up to 5 days in a plastic bag in the refrigerator.
To trim brussels sprouts:
Remove any yellow or bruised leaves. Slice off the stem.