Smashburger's New Yorker Burger
May marks National Burger Month, which is practically an American rite of passage. If you don’t eat at least one burger this month, consider it a letdown to your country. Try Smashburger's New York-inspired burger to kick things off.
Separate the 1 pound ground beef into halves or quarters (1/2-pound or 1/4-pound burgers), balling them into loosely packed meatballs.
Paint the inside of the bread rolls with butter.
Toss the sliced onions with 1 teaspoon of melted butter, salt and pepper to taste.
On a large hot griddle, paint 2-4 spaces with melted butter. Place the meatballs on the butter and smash for 10 seconds using the back of a heavy spatula. Season with salt and pepper.
Place the seasoned onions on the griddle and cook until caramelized.
Turn the burgers and place the sliced New York white cheddar on the seared side.
Place the buns, butter side down, on the griddle to butter toast.
When the burger is done, place the burger on the toasted roll, top with 1 to 1 1/2 ounces of the caramelized onion, two slices of tomato and 8-10 baby spinach leaves.
Spread 1 ounce of mayonnaise or aioli on the crown of the roll and enjoy.