Combine flour, 1 tsp. kosher salt, 1/4 tsp. black pepper, and 1/8 tsp.ground cayenne pepper in a gallon size plastic bag. Add pork a few pieces at a time to coat with flour mixture and brown in fry pan with olive oil. DO NOT COOK, just brown the outside quickly for a nice crust. Set aside in a bowl.
Reduce heat to medium. Add onions and cook in oil until tender about 10 minutes, stirring frequently. Add garlic and cook 1 minute longer.
OVEN DIRECTIONS: Transfer pork and onions to a large dutch oven or enamel roaster. Add tomatoes with their juice, cilantro, cumin, coriander, salt, gr. red ,carrots,celery and 2 cups broth. Bake covered in oven for 1 hour at 350 degrees.
Remove from oven and stir in potatoes. Cover return to oven and bake for 40 minutes or until potatoes are just tender.
Remove from oven and stir in black beans. Cover and return to oven and bake 15 more minutes until beans are heated through.