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 bowls

Add blue into one bowl

Add pink into the second one

Add orange into the third one

Add yellow into the fourth one

Leave the fifth bowl white

Using a pastry bag with a round tip, scope some blue meringue on1/4 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