Lobster à l'américaine - Boys of Cooking

Ingredients

• One 2- to 2½-pound lobster or three 1-pound lobsters
• 5½ tablespoons unsalted butter
• 3 tablespoons olive oil
• 1 medium carrot, diced
• 1 medium onion, diced
• ⅓ cup Cognac
• 1½ cups lobster stock, fish stock or chicken stock
• 1 cup dry white wine or dry vermouth
• 1½ cups peeled, halved and juiced tomatoes, chopped
• 2 to 4 tablespoons tomato paste or tomato sauce
• 1 teaspoon dried tarragon
• 1 clove garlic, minced
• ¼ teaspoon salt
• Pepper, to taste
• Few drops of hot pepper sauce
• 1½ tablespoons unsalted butter
• 1½ tablespoons flour