Start by slicing your half onion in small cubes
½ Onion
Place them in a mortar and crush them using a pestle
In a mixing bowl add your ground beef and crushed onion cubes, followed by the egg, paprika, salt, pepper, mustard and ketchup
400 grams Ground Beef Meat, ½ Onion, 1 Egg, 1 tsp Paprika, ½ tsp Salt, ¼ tsp Black Pepper, 1 tsp Mustard, 1 tsp Ketchup
Using gloves, mix everything very well until well incorporated
In the end, gently flatten the meat to make the surface even
Cover with a cling film and place it in the fridge for at least a couple of hours or overnight
Once rest time is over, take a piece of meat with your hand, roughly a ⅓ of the total meat and roll it in a ball, then proceed to gently flatten between your fingers then with your palms and place the piece of meat in the pan
Repeat for the other three and prick them all over the surface with a fork
Turn the heat on medium under your pan
Once cooked from the bottom, flip your meat on the other sideChoose cooking time according to how you want it cooked:raremedium-raremedium-well donewell done If well pricked, your meat should not rise in volume
Place it in your burger and add any condiments and seasoning you want!