The second style, more characteristic of southwestern and south-central Louisiana, is Cajun jambalaya, which contains no tomatoes (the idea being the farther away from New Orleans one gets, the less common tomatoes are in dishes). The meat is browned in a cast-iron pot. The bits of meat that stick to the bottom of the pot (sucs) are what give a Cajun jambalaya its brown color. A little vegetable oil is added if there is not enough fat in the pot. The trinity (of 50% onions, 25% celery, and 25% green or red bell pepper, although proportions can be altered to suit one's taste) is added and sautéed until soft. Stock and seasonings are added in the next step, and then the meats are returned to the pot. This mixture is then simmered, covered, for at least one hour. Lastly, the mixture is brought to a boil and rice is added to the pot. It is then covered and left to simmer over very low heat for at least 1/2 hour without stirring. The dish is finished when the rice has cooked.