Black and Blue Steak Burger
Why chop up perfectly good steaks to make burgers? Why, for the extraordinary taste and texture, of course; and it's nice to know exactly what you're eating. Most ground meat from the store is too fine, horribly overworked, and a little tough by the time you form it into patties. We avoid that problem by using a sharp knife and partially frozen meat. Plus, the sharp, savory funkiness of blue cheese helps form a glorious crust as the meat sears into it.
This will also work with cheaper cuts like chuck, or round, but there's a certain luxury to starting out with meat that's already tender before it's even chopped. If you can find some extra flavorful dry-aged beef, this will be even more memorable.
Feel free to use no cheese, or a different variety, but the blue cheese promises impressive crustification.
To make your own quick-pickled red onions, season 1 sliced red onion with a big pinch of salt, cover with red wine vinegar, and refrigerate overnight, or until the onions turn color and soften slightly.