Buy perky, energetic lobsters; they should be active and extend their claws upwards when lifted.
2 1 1/2-lb. live lobsters
Unsalted butter, melted (for serving)
Bring 2″ water to a simmer in a large stockpot. Add two 1 1/2-lb. live lobsters (yes, alive) and quickly cover pot—walk away if you need to. Steam lobsters until shells are bright red and meat is cooked through, 8–10 minutes. Remove from pot with tongs and let cool 5 minutes before cracking. Serve with melted unsalted butter.