Grilled langoustine with bisque and parmesan croutons - United Kingdom

Ingredients

• ½ kohlrabi
• 50 ml sugar
• 50 ml vinegar
• 25 ml water
• 12 langoustines
• ½ fennel
• 1 onion
• ½ leek
• 2 garlic cloves
• Oil
• 2 tsp paprika
• 2 tsp thyme
• 1 tbsp tomato puree
• 50 ml cognac
• ½ bottle white wine
• 500 ml fish stock
• 250 ml whipping cream
• 2 slices of wheat bread
• 50 ml grated parmesan
• 1 tbsp chopped parsley
• Herbs to garnish, e.g. red or green sorrel
• Salt/pepper