Sweet leeks and a hint of garlic lend a depth of flavor to this creamy sweet potato and potato gratin, which also gets a boost from a mix of cheeses and a pecan bread topping.
This easy gratin starts with roasted cauliflower and sautéed leeks, then pairs with fontina cheese, cream, and fresh thyme. It's comforting and delicious, but beware, it's also rich. So don't eat the whole thing yourself!