Ingredients:

2 lbs best Irish beef mince
1 large Spanish onion,peeled and grated.
2 tbsp freshly chopped parsley
Salt and freshly ground black pepper
2 tsp Dijon mustard
4 crusty buns
Frilly salad leaves

For the Sauce:
8 spring onions,trimmed and chopped
2 tbsp freshly chopped parsley
Good squeeze lemon juice
4 tbsp olive oil

Directions:

Place the mince in a bowl. Add the grated onion and parsley and season with salt and freshly ground black pepper and mustard. Test for seasoning by nipping off a piece of the mix and frying in a little oil and tasting.Adjust if necessary.

Shape the burger mixture into patties using Burger Mate and fry in oil until browned on both sides and around the edges.Test to make sure they are cooked through, by pressing with a finger, they should be springy but firm.

For the sauce, place the spring onions, parsley and lemon juice in a blender and whizz.While the motor is still running add olive oil to give a smooth, bright green and irresistible sauce. Season with salt and freshly ground black pepper to taste.

Cut the buns in half and line with frilly leaves.Perch the burgers on top of bottom half and spoon the sauce over. Top with the bun lid and serve.