Before washing Brussels sprouts, remove stems and any yellow or discolored leaves. Wash them well under running water or soak them in a bowl of water to remove any insects that may reside in the inner leaves.
Brussels sprouts are usually cooked whole. To allow the heat to permeate throughout all of the leaves and better ensure an even texture, cut an "X" in the bottom of the stem before cooking.
While Brussels sprouts are usually served as a side dish, they also make a nice addition to cold salads.