Preheat the oven to 225 degrees
In a standing mixer, add in the egg whites and cream of tarter.
Mix on medium speed until soft peaks form and then increase to faster speed.
Alternating between the sugar and powder sugar, add in 1 Tablespoon at a time until stiff peaks form.
Add in the vanilla and mix until combined.
Split batter into 5 bowlsAdd blue into one bowlAdd pink into the second oneAdd orange into the third oneAdd yellow into the fourth oneLeave the fifth bowl white Using a pastry bag with a round tip, scope some blue meringue on 1/4 of the bag
Add the pink meringue to another 1/4 of the bag
Add the orange to the bag
Add the yellow and then the white
Pipe on the meringues onto a baking sheet lined with parchment paper.
Bake for 1 hour and 30 minutes