Coring brussels sprouts and separating the leaves is a tedious chore second only to shelling and peeling fava beans. Now there’s a compact little brussels sprout corer to make it easier. Force the core end of the sprout onto the tool’s point, then twist the sprout as you press down. Two stainless steel blades make short work of the core and loosen the leaves enough to facilitate pulling them off for a stir-fry or salad. You won’t save much time — figure about a minute per sprout for coring and leafing — but it is effective. It’s an inch and a half high and a little more than two inches across, to fit comfortably in your hand: Chef’n Twist’N Sprout, $8, store.moma.org.