This is an easy way to do them - perfect results everytime: pre-heat your oven to 240 (sorry I don't knwo the gas mark). In a glass measuring jug crack 4 eggs; this will probably be around the 200ml mark, pour into mixing bowl. Then measure the exact same amount of milk and plain flour as your eggs, add to the mixing bowl & season - whisk it all up. Once your oven is at the correct temperature, add your oiled tin for at least 5 mins (take care not to 'slam' oven door when opening) add the mix to the tin whilst still in the oven by pulling the shelf towards you gently. Cook for 20 mins - open the door a little bit to check, if you think they need a little longer, close door gently for a further 5 mins or so. They come out huge & perfect every time!