Potato Casserole with Bacon and Caramelized Onion
Why This Recipe Works
In the old days, this casserole of potatoes and onions was baked beneath a roast, which allowed the casserole to be seasoned by the savory fat and juices of the roast. To get the same luxurious results without the roast, we started by rendering a small amount of bacon, which lent the dish a meaty flavor with a hint of smokiness. We then browned the onions in the rendered bacon fat, which gave the dish remarkable complexity.