Why should potatoes have all the fun? You can gratin anything! Butternut squash, with its inherent sweetness and lovely, nutty flavor, makes the perfect subject to roast all covered in cheese.
Serves 4
- 1 head garlic
- 1 tablespoon extra virgin olive oil
- 1 medium butternut squash, peeled, seeded, and cut into 1-inch-thick half-moons
- 3 tablespoons unsalted butter
- 1/2 large white onion, sliced
- 4 large fresh sage leaves, minced
- 1 teaspoon kosher salt, divided
- 1 tablespoon cornstarch
- 1/2 cup reduced-sodium vegetable broth
- 1/3 cup winter ale
- 1 cup shredded Gruyère
- 1/2 teaspoon freshly ground black pepper
