Preheat oven to 210 degrees F.
Start by carefully separating the egg whites from the yolks, making sure each yolk stays intact and doesn’t touch the whites. Pour the egg whites into a mixing bowl, add a pinch of salt and ¼ teaspoon of cream of tartar, then whip it all up with a mixer until stiff peaks form.
Slowly mix in a quarter of the fine sugar while you keep beating for about 1 to 2 minutes. Then, add the rest of the sugar a little at a time, continuing to beat until the meringue becomes thick, stable, and airy enough to hold its shape.
Take half of the meringue and mix in orange food coloring until it’s evenly spread. Pop this mixture into a piping bag for later.
On a baking sheet lined with parchment paper, pipe the orange meringue into your preferred shapes, making sure to leave enough space between them.
Set aside one-third of the remaining meringue mixture and color the rest yellow. Place the yellow meringue in another piping bag.
Pipe yellow towers on top of the orange. Fill another piping bag with the white meringue and pipe the white meringue on top of the yellow.
Bake the meringues in an 210°F oven for an hour. They’re done when they easily lift off the parchment and feel dry to the touch.