Recipes: Lamb chops with polenta and grilled scallion sauce

Preparation time: 10 mins  Cooking time: 35 mins  Serving: 4 Ingredients:       8 lamb rib or loin chops (about 2 pounds) 1 1/2 teaspoons plus 1/8 teaspoon kosher salt, divided 1/2 teaspoon freshly ground black pepper 1 pound prepared polenta, sliced into 1/2" rounds 1/2 cup olive oil, plus more for brushing 1 bunch of scallions, roots trimmed...