Lobster Stock

• 1 tablespoon oil
• 1 small onion, roughly chopped
• 1 large clove

In a large pot, heat the oil and add the onion, garlic, carrot, and celery; cook over medium heat to sweat for about 5 minutes, until the vegetables are softened and the onion is translucent but not browned. Add the lobster shells and heads and stir. Cover with cold water and bring to a boil. Skim off the foam and scum that rise to the top, then lower the heat to a simmer. Add the remaining ing