Preheat fan-forced oven to 120°C/250°F and line 2 trays with baking paper
In the bowl of a stand mixer, whisk the egg whites and cream of tartar on medium-high until stiff
Gradually add the caster sugar, 1 tablespoon at a time. Whisk each spoonful for 30 seconds (set a timer!)
Once all of the sugar has been added, continue to whisk until mixture is thick and glossy -about another 6-7 minutes
Using an ice cream scoop, mound 2 scoops of mixture onto tray and press down slightly to make a divot in the centre of each. Place 5 giant cookies per tray
Dollop a teaspoon of your chosen filling onto each mound, then swirl through with a toothpick or skewer.
Nutella Meringue Cookie Variation
If making Nutella meringues, sprinkle the chopped toasted hazelnuts and swirl through with the Nutella
Biscoff Variation
For Biscoff Meringues, dollop either Biscoff topping or spread, then sprinkle with Biscoff biscuit crumbs and swirl through
Chocolate Variation
Melt the chocolate in a microwave and allow to cool a little, before swirling through the meringue.
Salted Caramel Variation
Dollop salted caramel into the centre of the meringue, then swirl through. Be careful not to swirl caramel to the outside of the meringue, as it melts easily and will ooze out of the meringue.
Baking the Meringue Cookies
Place the trays into the oven and bake for 1 hour. After 1 hour, turn the oven off and allow the meringues to cool in the oven
Serve when cool, or place in an airtight container for up to 3 days
Notes
1 hour in a conventional oven will make the meringues crispy outside and fluffy inside.
For chewier cookies, still bake for 1 hour, but use a fan-forced setting