Step 1

Preheat the broiler. Place a wire cooling rack inside a rimmed baking sheet. Cut the top shell of the lobster tails lengthwise down the middle with kitchen shears. Then, using a knife, cut all the way through the tails to split into 2 pieces. Place them flesh-side up on the prepared baking sheet.

Step 2

Mix together the butter, parsley, shallot, lemon zest, 1/2 teaspoon salt and a few grinds of pepper in a small bowl until well combined.

Step 3

Spread 2 teaspoons of the compound butter on the flesh of each lobster tail half. Broil until the shells turn a bright orange, the flesh is opaque and cooked through and the tails begin to curl, about 4 minutes.

Step 4

Transfer the tails to a serving platter and top each half with another teaspoon of the compound butter (save the remainder for another use).