Preheat and prepare

• Preheat the oven to 100°C (fan).
• Line a baking tray with parchment paper.

Whip the egg whites

• Place the room-temperature egg whites in a clean, grease-free bowl.
• Add the cream of tartar and whisk on medium speed until soft peaks form.

Add the sugar

• Add the caster sugar one spoonful at a time while whisking continuously.
• Keep whisking until the meringue is glossy and holds stiff, shiny peaks.
• Whisk in the vanilla extract at the end.

Pipe the meringues

• Spoon or pipe the meringue into even swirls on the prepared tray.
• Leave a little space between each one.

Bake

• Bake in the preheated oven until the meringues are dry and lift easily off the paper.
• Turn the oven off and leave them inside to cool completely for about 30 minutes.