Think of boudin as the down-home Cajun style of sausage. The rice-and-pork tubesteak is native to Lake Charles, Louisiana and the surrounding area. Though once looked down upon as a poor man's food, boudin's stock has risen in recent years. These days, there's a thriving network of mom-and-pop joints in Lake Charles and beyond specializing in this homegrown product, each with a slightly different recipe. Smoked and spicy varieties are common.