Chicken breast sandwich with barbeche sauce

INGREDIENTS:
4 skinless and boneless chicken breasts, cut in half
1 onion finely chopped
4 cloves of garlic, finely chopped
1-1/3 cup barbecue sauce
1/2 cup apple cider vinegar
1-1/2 cups shredded Monterey Jack cheese
Salt and pepper
6 pieces of PAN BARCOS Hamburger bun
Hot sauce
ELABORATION:
Season the breasts with salt and pepper, place them in a large pot with the garlic and onion and cover them with water (just until they are covered).
Add the barbecue sauce, vinegar and a few drops of hot sauce and bring to a boil.
Reduce heat until breasts are cooked, about 15 minutes.
Remove the breasts with forks and place them on a separate plate.
Bring the sauce left over from cooking the chicken breasts to a boil until the liquid is reduced by half. Season with salt and pepper to taste.
Allow 15 minutes for the sauce to cool halfway and add the chicken breasts. You can gradually shred them into the pot.
Cut the bread in half and add the chicken breast pieces and put the grated cheese on top.