Preheat oven to 300 and place a piece of parchment paper flat on a sheet pan.  Spray parchment paper with non stick cooking spray.

The key to making cloud bread is getting your egg whites into stiff peaks to bake. 

First add 6 tablespoons of liquid egg whites into a bowl. Whisk (or mix on high in a mixer) until the egg whites start to bubble up in mini bubbles, about 2-3 minutes. 

Slowly add corn starch and white sugar, 1 tsp at a time so you can maintain the fluff.

Now mix until egg whites are stiff peaks. You can do this by hand or a stand mixer. My stand mixer (on high) takes about 10-12 minutes of mixing until ready and I recommend using a stand mixer as it does take a bit for it to mix properly. Hand mixing with a whisk will take a long time.

If you are making RAINBOW cloud bread, separate into bowls and add food coloring. Use a hand mixer to fluff up.

Once egg whites are fluffy and stiff (stand on own), add to a sheet pan covered in parchment paper into a round loaf shape. If you are making a rainbow, layer the colors in a line, making sure the egg whites are not flat but are instead fluffy and high.

Place sheet pan in oven on 300 for 25-26 minutes.

The top may slightly browned , which is normal.

Peel cloud bread slowly from the parchment paper.