Pour 2 inches of seawater into a pot large enough to comfortably hold the lobsters. Some cooks also place a steaming rack large enough to hold the lobsters above the water, in the bottom. Bring water to a rolling boil over high heat. Place lobsters in the pot, cover tightly, return to a boil as quickly as possible and start counting the time. Steam a lobster for 13 minutes per pound, for the first pound. Add 3 minutes per pound for each additional pound thereafter. For example, a 2-pound lobster should steam for 16 minutes and a 1 ½-pound lobster should steam for 14 ½ minutes.
Printer Friendly Version