Pre-heat oven to 225º F
In a small sauce pan add the egg whites and sugar. Whisk to mix well.
On medium heat warm the eggs and sugar, whisking constantly so egg whites do not cook.
Continue to whisk and heat the egg mixture until sugar is dissolved. To test the dissolving of the sugar, pinch a small amount between your fingers and rub together. If there are still granules continue heating and whisking. If there are no granules, remove from the heat.
Cool 10 minutes.
Pour egg mixture into the mixer fitted with a whisk attachment.
Whisk until foamy peaks form.
With mixer on medium stream in the sugar, cornstarch, salt and almond extract.
Whisk on high speed until stiff glossy peaks are formed, this is the meringue stage. It is important to turn the meringue mixture as the bottom mixture may not have reached the stiff and glossy stage yet.
Once your meringue is at the stiff and glossy stage scoop onto parchment lined baking sheet in a round shape. Using an spatula, swipe up the sides to form a dome shape.
Bake, undisturbed, for 60 minutes. Then turn off the oven and let rest and cool for a minimum of 60 minutes.