Ingredients:

1 small Onion,
500 grams Good-quality minced beef, 1 lb 2 oz.
1 Egg,
1 tablesp. Vegetable oil. 
Burger buns.

Directions:

1. Chop the onion Peel the onion, slice in half through the root and trim off the top. Place cut-side down on a chopping board. With your knife parallel to the board, cut 3 slices through the onion, keeping the root intact. With the knife point at root end, cut down through the onion from top to bottom 4 times. Holding the root end, finely
slice to give you small diced pieces. Tip the beef into a bowl with the onion and egg, then mix.

2. Shape the burgers.  Carefully roll the mixture into balls and place in BurgerMate.  The formed burgers are the same thickness so that they will cook evenly. Put on a plate, cover with cling film and leave in the fridge to firm up for at least 30 mins.

3. COOK ON THE BARBECUE

Heat the barbecue to medium hot (there will be white ash over the red hot coals - about 40 mins after lighting). Lightly brush 1 side of each burger with oil. Place the burgers, oil-side down, on the barbecue. Cook for 5 mins until the meat is lightly charred. Don't move them around or they may stick. Oil the other side, then turn
over using tongs. Don't press down on the meat, as that will squeeze out the juices. Cook for 5 mins more for medium. If you like your burgers pink in the middle, cook 1 min less each side. For well done, cook 1 min more.