Name: Sweet Potato Gratin with Sage Cream
Yield: Serves 6 – 8
Ingredients: Salt and freshly grated pepper; 4 fresh sage leaves, torn in half; Unsalted butter for the baking dish; ½ cup (2 oz/60 g) freshly shredded Parmesan cheese; 2 cloves garlic, mashed; 1 cup low-sodium vegetable or chicken broth; ½ cup (2 oz/60 g) shredded Gruyère cheese; 1 cup (8 fl oz/250 ml) heavy cream; 2 russet potatoes; 2 lb (1 kg) Garnet sweet potatoes