In a Dutch oven, heat oil over medium-high heat. Add ham hock, and cook until browned on all sides. Stir in vinegar, scraping bottom of pot with a wooden spoon. Stir in broth, 2 cups water, brown sugar, chiles, bay leaves, and thyme, and bring to a boil over medium-high heat. Stir in beans, reduce heat, and simmer, stirring occasionally, until beans are tender, 25 to 30 minutes. Stir in salt and pepper.
Recipe by Paula Deen Magazine at https://pauladeenmagazine.com/baby-limas-ham-hock-recipe/