Method

First of all, add some oil to a frying pan and gently fry off the onions. You can if you want at this point flavour up your burger base with some flavours mentioned above. When softened, remove from the heat and let cool

Add your sliced bread to a food processor and blitz until they are breadcrumbs

Separate your eggs into yolks and whites

In a large bowl, add all your ingredients together (make sure onions are cooled) and then bring it all together by hand until the meat, bread, onions and eggs are well combined.

Take a small handful of the meat mixture and roll into a meatball shape. Place the meatball on a clean chopping board and gently squash down to make into a beef patty.

Repeat this with the remaining meat and when done, put the patties on a plate, cover with cling film and pop them into the fridge until ready to cook

Just remember that as the meat hasn’t been grinded by yourself; you can’t trust that the meat hasn’t been handled correctly so always serve the burgers cooked throughout.

If you want to cook the burgers rare then you’ll have to grind your own beef/lamb.