Chicken Gratin

This decadent casserole features tender chicken thighs and turnips that are bathed in a creamy gratin sauce and topped with garlic breadcrumbs.

159 Calories

21g Carbohydrates

23g Protein

699mg Potassium

10g Fiber

9g Sugar

8 small boneless, skinless chicken thighs (about 2 1/4 pounds)
1 3/4 teaspoons kosher salt, plus more to taste
1 1/4 teaspoons black pepper, divided
5 tablespoons unsalted butter, divided
2 medium (about 12-ounce) leeks
5 garlic cloves, divided
1 1/4 pounds turnips (about 3 medium turnips), peeled and cut into 1/2-inch pieces
2 tablespoons all-purpose flour
1 cup chicken stock
3 tablespoons (1 1/2 ounces) Cognac
2 tablespoons (1 ounce) dry sherry
3/4 cup heavy cream
1 tablespoon Dijon mustard
1 1/2 teaspoons finely chopped fresh thyme, plus thyme sprigs for garnish
1/2 teaspoon ground nutmeg
5 ounces Gruyère or aged Gouda cheese, grated (about 1 1/4 cups)
3 tablespoons olive oil
1 1/2 cups fresh breadcrumbs (from 1 small French bread loaf)