I red onion cut in half sliced into 1/2cm half rings
1Teaspoonsalt
1teaspoonsugar
1teaspoonmustard seeds
1cupred wine vinegar
Instructions
First make the pickled onion
Heat the salt, sugar, mustard seeds and vinegar in a Susan until the sugar has dissolved, set aside and allow to cool. Place the onion in a jar and pour over the vinegar liquid. If required add water to make sure the onion is covered, put the lid on and shake to mix everything together. Leave in the fridge for at least an hour - Longer will not hurt!
For the green goddess sauce
In a food processor, combine the yoghurt, parsley, mixed herbs, chives, lemon juice, zest, olive oil, capers, garlic, salt, and pepper. Pulse until well combined. Season to taste. Store in an airtight container in the fridge for up to 5 days.
Now make the burgers
Heat a griddle pan or BBQ to a high heat.
Flatten the burgers on a piece of grease proof paper to so they are roughly the same size as you burger buns - Don't flatten them on the heated pan or BBQ as it squeezes the moisture out!
Spray the burgers with a little olive oil (or pat them with oil) and season with salt and pepper as you would a steak
Cook to you liking (roughly 2 minutes each side, remove from the heat, place a slice of cheese on each and cover with foil to rest. Keep the pan warm and
Place the buns (flat side down) in the the same pan or BBQ, and lightly toast. Spread garlic and herb butter on both sides of toasted bun, keep warm.
Fry egg sunny side up until cooked and sprinkle with marinated feta.
To assemble your burger, place pickled onions on the bun base, top with salad leaves, patty, fried egg, some more salad leaves and drizzle the green goddess sauce and bun lid. Enjoy!