In a saucepan over medium heat saute the onion, celery, garlic, and butter until the celery and onions are tender about 7 mins.
Stir in the salsa, ketchup, brown sugar, vinegar, Worcestershire sauce, chili powder, and salt and pepper. Add the chicken to the pot and stir to combine. Bring to a boil. Reduce heat, cover and simmer for 12-15 minutes.
To serve, portion the chicken on the toasted buns and serve immediately.
Notes
If you’re cooking and shredding your chicken on the day of making this recipe, cook the chicken separately. Be sure to add cooked, shredded chicken to the barbecue sauce mixture prior to simmering. We love toasting the hamburger buns before serving. You can use cooked, shredded pork in place of chicken as a variation.To freeze the shredded BBQ chicken, cool the meat and sauce mixture (after simmering it) and place in a freezer safe container. This will keep in the freezer for up to 3 months. When ready to use, thaw in the refrigerator overnight. Heat the mixture in a saucepan and add 1/4 cup water or more to the saucepan if needed.Note: hamburger buns are not included in the nutritional information.recipe source: adapted from Taste of Home