Step 6: Mix the ingredients
1) Whisk the eggs until they are slightly foamy.
If you do not have a whisk, a fork can be used, but it will take longer.
2) Add flour, sugar, and almond or vanilla extract.
3) Mix thoroughly until smooth.
The batter may seem too thick at first (like a dough), but keep mixing. If it doesn't become thinner, add another egg white.