Crayfish Bisque

Ingredients

• 2 crayfish
• 1 tsp salt
• 2 tbsp unsalted butter
• 1 tbsp olive oil
• 1 brown onion, finely diced
• 2 carrots, peeled and finely diced
• 2 stalks celery, finely diced
• 1 tsp fresh thyme leaves, chopped
• 1 tsp fresh tarragon, chopped
• 1 tsp chicken stock powder
• Pinch of freshly ground black pepper
• Pinch of cayenne pepper
• 4 cloves garlic, minced
• 2 tbsp tomato paste
• 3 tbsp plain flour
• 1 ½ cups white wine
• 1 cup cream