Get ready: Preheat your oven to 250 degrees. Fit your electric mixer with the whisk attachment.
Cut 2 sheets of parchment paper to fit your baking sheets. Draw circles of the following sizes on them (1 of each):Pan 1: 8"/20 cm, 5" / 12.5 cm, 2"/ 5 cm.Pan 2: 6.5" / 16.5 cm, 3.5" / 9 cmPlace parchment paper in your pans, marked side down. You should be able to see the markings through the paper.Set aside.
Remove eggs from fridge, separate out the whites, and allow to warm to room temp (about 5 minutes).
In your mixer bowl, beat egg whites together with salt until glossy peaks form.
Slowly add in the sugar, and continue whipping until stiff peaks form. Turn off mixer, remove bowl.
Sprinkle vinegar, cornstarch, vanilla, and food colouring over meringue, gently fold in till combined.
Divide meringue amount your drawn circles - smoothing meringue out to the edges of the guides.Aim to have each round about the same height. If they're not perfectly even or all the way out to the circle, don't worry!
Put the baking sheets into your oven, bake for 55 minutes.
Once your timer goes off, turn the oven off and let the meringue cool in the oven for several hours. The baking of the meringue can be done the day before, if needed!
Just before serving, whip the heavy cream.I like my pavlovas a little sweeter, so I add about 2 tablespoon of sugar – add as much or as little as you want. Purists may not want to sweeten the cream at all! I also like to add a little flavoring, again – optional
Once heavy cream is whipped to the desired thickness, add any desired flavourings, if applicable, as well as the green food colouring. Mix until well combined.
Place largest meringue on serving plate, top with some whipped cream, and then fruit.Add the next largest meringue, and gently top with whipped cream and fruit.Repeat with the remaining meringues and whipped cream, ending with a peak of whipped cream.
Add your "Christmas tree topper" - a slice of starfruit, a star cut from a piece of mango, or whatever else you'd like - and serve immediately!