Freshly ground black pepper
Juice and zest of 2 lemons, divided
3 c. low-sodium chicken broth
Kosher salt
1 c. frozen peas
1 tablespoon sugar
2 carrots, cut into 1" pieces
5 cloves garlic, minced
2 large onions, diced
2 pounds boneless skinless chicken breasts
4 sprigs fresh thyme