Heat oven to 110 C
Whip egg whites until stiff peaks form
Mix in sugars
Once sugar is mixed in, quickly whisk in vinegar and baking powder
Scoop up a heaped dessertspoonful of the mixture. Using another dessertspoon, ease it on to the baking sheet to make an oval shape. Or just drop them in rough rounds, if you prefer.
Bake for 1 ½-1 ¾ hours in a fan oven, 1 ¼ hours in a conventional or gas oven, until the meringues sound crisp when tapped underneath and are a pale coffee colour
DO NOT OPEN OVEN
