Burger patties can be made and frozen uncooked. Place a layer of baking paper between each patty. Freeze in an airtight container. Remove as required. Patties can be cooked from frozen or thawed in the refrigerator before cooking. If cooking from frozen cooking time will be longer.
Add your favourite burger toppings such as avocado, beetroot, gherkin slices, cheese slices, fried egg, etc.
Replace caramelised onions with thinly sliced fresh red onion.