Ingredients:

For The Patties:
1lb/500g ground beef, preferably good quality coarse ground
1 half onion finely chopped
1 clove garlic crushed or a pinch of garlic powder
1 dash steak sauce(about 2 tablespoons)
1 small dash Worcestershire sauce(about 1 tablespoon or less)
a little pepper, fresh ground is better
1 hand fresh bread crumbs
1 egg lightly beaten
1 quarter beef stock block dissolved in a quarter cup water

For the Rolls:
4 rolls
sliced tomato
thinly sliced onion
lettuce
a few slices of gherkin
mayonnaise

Methods:

Mix all the patty ingredients thoroughly,leaving the salt for after the patties are cooked if you prefer.
Make sure the mixture is cool. Divide mixture into 4 equal balls and mold into patties.
Cook on medium heat under the grill, on the barbecue or in a pan until the patty is cooked to your preferred degree of doneness or the internal temp reaches 160F/70C.

Split the rolls and toast the cut surfaces lightly (under grill, on barbecue or in pan) just before the patties are done. Spread mayonnaise on the bottom half, add a thin slice of onion, some lettuce, a slice of tomato and a little sliced gherkin. Top it off with the patty and the other half of the roll.