My lobster bisque for a rainy day • Leeks and High Heels

Ingredients

• lobster shells ( minimum 3, can be frozen)
• 2 table spoons butter
• 1 onion, chopped coarsely
• 1 celery stem, chopped coarsely
• 1 carrot, chopped coarsely
• 1 small leek, chopped coarsely
• 1 table spoon flour
• 2 table spoons concentrated tomato puree
• 1 later fish stock
• 2 bae leaves
• 3 sprigs fresh thyme
• salt
• 1 tea spoon pigment d'espelette
• 1 table spoon cognac
• 180 ml cream