Everyone loves a laid-back British barbecue and this classic steak dish with homemade onion rings and char-grilled tomatoes is the ideal meal to serve.
Sift the flour into a medium bowl and make a well in the centre. Add the egg yolks and gradually pour in the milk, whisking to combine until a smooth batter. Cover with cling film and leave to stand in the fridge for 30 minutes.
Preheat the oven to gas 4, 180°C, fan 160°C. Heat the oil in a large saucepan over a medium heat for about 3 minutes until the oil begins to shimmer slightly.
Whisk the egg white until stiff then fold into the batter. Dust the onion rings in a little flour then dip into the batter. Carefully place in the hot oil one at a time. Only fry up to 10 onion rings at a time or the temperature will drop. When the rings float to the surface, cook for a further minute, turning once or twice until golden all over. Carefully remove from the oil, drain on kitchen towel and put on a large baking tray. Keep the rings in the oven so they remain warm while you cook the steaks.
Heat 1tbsp oil in a large nonstick frying pan over a medium to high heat and cook the steaks for 2-2 1/2 minutes on each side for a medium-rare steak. Add another minute for a medium to well-done steak. Loosely cover the steaks with foil and leave to rest for 5 minutes.
Meanwhile, heat the remaining oil in a nonstick frying pan and add the mushrooms and tomatoes, cooking for 2-3 minutes on each side. Serve with the sirloin steaks and onion rings on the side.
Tip: Test if the vegetable oil is ready for deep-frying and place a large cube of bread into the oil. If the bread browns nicely in 1 minute, it’s ready.
See more Steak recipes
For top tips on protecting you and your family when preparing raw meat and poultry, visit Food Safety in the Home and view the full Food safety at home video.