The success of this New York-based burger chain lies in the fact that the optimization of its assembly lines doesn't come at a higher cost to customers.

While many of these burger chains are very popular, they have not expanded to every U.S. state the way McDonald's, Burger King, and Wendy's have.

In the hometown of the Juicy Lucy, “I wanted to make something special that nobody [else] has,” says chef and owner Yuichiro Matthew Kazama — thus, cheese outside the burger instead of in it. Naturally, Kazama’s cheese sauce uses cheese curds, though he adds dashi and kombu to anchor the resulting product to the rest of the flavors on the menu.

Wahlburgers is shutting down more than two-thirds of its locations. The well-known restaurant chain has ended its franchising agreement with Hy-Vee.

Opt for red serrano peppers to make the best-tasting burger condiment. Serranos can be purchased in many grocery store produce sections, or at specialty Mexican groceries and summer farmers markets, sold by the pound.

In-N-Out Burger is an icon on the West Coast and the Double-Double is the flagship of their menu. Their burgers have some of the freshest flavors you can get at a fast-food joint.Buy the Ballistic Mojoe Griddle: <a href=" My book: <a href=" Five Guys Copycat: • Copycat Recipe: Five Guys All-The-Way-Burger Redhot Ranch Copycat: • Redhot Ranch Double Cheeseburger Copycat!

Food editor Taylor Ann Spencer shares her rules for perfect grilled hamburgers. From choosing the right ground beef to shaping the patty, here's what to know.

But now, CEO Lynsi Snyder — the founders’ granddaughter — is packing up her family and part of the business for a move out of state. As In-N-Out ramps up its expansion across the southeast, Snyder says the shift makes sense.