Source  Internet

Recipe Added:  11/4/2013

Preheat grill to high heat. In a large bowl, mash the bread and milk together with a fork until it forms a chunky paste. Add the salt, pepper, garlic, Worcestershire sauce and ketchup and mix well. Add ground beef and scallions and break up meat with hands. Gently mix everything together until just combined. Do not overmix. Divide the mixture into ten equal portions and form loose balls. Gently flatten the balls into 3/4-inch patties about 4-1/2 inches around. Form a slight depression in the center of each patty to prevent the burgers from puffing up on the grill.

Grease the grill with non-flammable cooking spray. Grill the burgers, covered, until nicely browned on the first side, 2-4 minutes. Flip burgers and continue cooking for a few minutes more until desired doneness is reached. Before serving, toast the buns on the cooler side of the grill if desired.

1. http://www.onceuponachef.com/2012/04/steakhouse-burgers.html