• Put the shrimp into a large bowl, season with salt and pepper, then mix in the lemongrass. Heat ¼ cup of the oil in a large deep skillet over moderate heat. Add the shrimp, stirring and tossing them with a spatula. Sauté until they turn pink, about 2 minutes. Remove the shrimp from the pan and set aside while you make the sauce. Into the same skillet with the oil and shrimp juices, put the remaining ¼ cup oil and the onions, garlic, celery, and bell peppers and cook, stirring constantly with a wooden spoon, for about 2 minutes. Add the tomatoes. Reduce the heat to medium-low and when the sauce comes to a simmer add the bay leaf, allspice, and red pepper flakes. Simmer for 10 minutes .Add the shrimp back to the skillet along with the basil and mint. Cook for a minute or two. Season with salt and pepper. If the sauce tastes too tart, add a little sugar to balance the flavor. Remove the bay leaf. Serve over steamed Louisiana white rice.

For the Louisiana White Rice (for 8 cups)

• Put the fat, oil, or butter and the onions into a medium saucepan and sweat the onions over moderate heat until they are translucent, about 5 minutes. Pour the rice into the pan and stir for 2 minutes. Then add the chicken stock and bring to a boil. Add the bay leaf and salt.

  Cover the pan with a lid, reduce the heat to low, and cook for 18 minutes. Remove the pan from the heat, fluff the rice with a fork, and serve.