This is chef Matt Jennings. He is a man you should trust when it comes to food, and he is going to show you how to grill a cheeseburger.

For burgers:

freshly ground beef chuck, about 20 percent fat

kosher salt and freshly ground pepper

potato sandwich rolls

medium spanish onion, thinly sliced

small head iceberg lettuce, torn into large leaves

extra-sharp cheddar cheese, sliced 1/4-inch thick

For special sauce:

mayonnaise

ketchup

Dijon mustard

sour cream

prepared horseradish

apple cider vinegar