INGREDIENTS
2 tbsp
extra-virgin olive oil
1
large celery rib, finely chopped
1
carrot, finely chopped
1
small onion, finely chopped
3
ancho chiles—stemmed, seeded and cut into small pieces
2 cups
chicken stock or low-sodium broth
1 cup
ketchup
1/4 cup
distilled white vinegar
1/4 cup
molasses
1/4 cup
dark brown sugar
1/4 tsp
dry mustard
Salt
Rack of 6 ribs, at room temperature