Lobster Bisque - Le-Thermique

Ingredients

• 950 ml lobster stock
• 4 lobster tails
• 1 tsp sea salt
• 1 onion
• 2 carrots, peeled
• 2 stalks celery
• 1 clove garlic
• 1 tomato
• 30 g butter
• 1 tbsp olive oil
• 300 ml dry white wine, or sherry (omit for halal)
• 1 tsp fresh chopped thyme
• 1 tsp fresh chopped tarragon, plus more to serve
• 1 tsp seafood or chicken seasoning powder
• 3 tbsp all-purpose flour
• 2 tbsp tomato paste
• ½ tsp salt
• ¼ tsp fresh cracked black pepper
• ½ tsp cayenne pepper
• 240 ml heavy cream