8 bone-in chicken thighs
4 sprigs rosemary
4 cloves garlic, peeled
1 teaspoon kosher salt
¼ teaspoon freshly ground black pepper
¼ teaspoon crushed red pepper flakes
3 stalks celery, thinly sliced
3 shallots, finely minced
1 large bell pepper, finely diced
¾ cup 0% Greek yogurt
2 tablespoons dijon mustard
zest of 1 lemon
juice of ½ a lemon
½ teaspoon kosher salt
¼ teaspoon freshly ground black pepper
¼ teaspoon crushed red pepper flakes