Pollo in Potacchio (Braised Chicken with Tomatoes and Rosemary)

skinless chicken thighs on the bone, 5 oz each

kosher salt and fresh black pepper

– 4 small sprigs fresh rosemary

+ 1 tsp olive oil

large yellow onion, finely chopped

garlic cloves, chopped

celery stalk, chopped

carrot, chopped

red pepper flakes, optional

Imported crushed tomatoes (Tuttoroso)

dried marjoram

dry white wine (Omit for Whole30)

low sodium, fat free chicken broth

kosher salt and fresh black pepper