Homemade Shredded BBQ Chicken Sandwiches

In a medium pot over medium-high heat, bring salsa, vinegar, brown sugar & seasonings to a boil. Add the chicken to the pot. Reduce heat to low. Cover & cook for 30 minutes until chicken is fork tender. Remove chicken from pot to a cutting board. Using 2 forks, shred the chicken. Return shredded chicken to pot along with sauce. Heat until mixture is hot & bubbly. Serve the BBQ chicken on buns, topped with shredded cheese.