- 2 lobster carcasses
- 1 chopped carrot
- 1 chopped celery rib
- 1 chopped onion
- 5 minced garlic cloves
- 1 bay leaf
- 1 thyme sprig
- 2 tablespoons olive oil
- 16 cups water.
- Split the lobster carcasses down the middle and remove the grain sac.
- Cook the carrot, celery rib, garlic cloves, bay leaf, and thyme sprig in the olive oil in a 6- to 8-quart pot over moderate heat until softened.
- Stir in the lobster carcasses and water. Bring to a boil and simmer until reduced to about 6 cups, about 11/2 hours.
- Strain through a cheesecloth-lined fine sieve. Cool and refrigerate up to 4 days or freeze up to 3 months.