1. Fat is where the flavour is, so use a 20%+ fat beef mince (ground beef, preferably chuck). In Australia, even supermarket 20% fat beef mince is terrific, though quality beef from butchers (especially wagyu) will make exceptional hamburgers.
To make this using lean mince, use this recipe
which has flavourings added to compensate for less fat which provides flavour in this recipe. This is the original recipe I shared on the basis of making hamburgers using lower fat beef.
2. In the video, I use a store bought tomato relish.
3. Nutrition including: 200g/7oz hamburger patties, 1 slice cheese, 2 tbsp tomato relish, lettuce, tomato, hamburger buns. It is about 40 calories higher than actual as it does not take into account fat discarded from pan.
Originally published 2016 with this recipe. Recipe updated and improved in May 2018.