Preheat oven 250˚
Line baking sheets with parchment paper
Mix sugars, set aside
In mixer, beat egg whites until foamy. Add tartar and salt, then continue to beat, adding sugar a tblsp at a time.
Add extract and beat at high speed until glossy, stiff peaks form.
You can use a pastry tube to pipe the meringue in coils. To make bases for Pavlova, make an indentation in the middle.
Bake an hour, until cream colored and firm. Leave in the oven that's turned off for another hour or two without opening the door. Overnight would work too.
Store in plastic bags and seal airtight.