Make the meringue: Add the lemon juice to the ＊ egg whites, and start mixing with a handheld mixer, set at a low speed to start with. Switch it up to high speed, and keep beating the egg whites while adding the sugar in 2 to 3 batches, turning the beaters around the bowl. When the foam is quite sturdy, lower the speed again to firm up the texture of the meringue. You'll have a fine, glossy meringue. Don't over-beat the meringue! It should just form soft peaks that flop down.