INGREDIENTS 6 lamb shanks Kosher salt Freshly ground black pepper 2 tbsp. extra-virgin olive oil 4 tbsp. butter, divided 1 onion, chopped 2 medium sprigs rosemary , peeled and finely chopped 3 cloves garlic, minced 2 tbsp. tomato paste 2 c. low-sodium beef broth 1 (15-oz.) can tomato sauce 2 1 c. red wine Mashed […]