Mix egg yolk and yogurt (soy milk), combine well.
Add flour (rice flour) and mix.
Add the sugar to the egg white, whip until the stiff peak stage.
Add the meringue to the egg yolk mixture and mix it gently. Avoid breaking the meringue.
Preheat the pan at the lowest heat and melt the butter.
Pour several pancakes into the pan. Add 1-2 tbsp of water in the empty space in the pan and cover with the lid. Bake them around 5 minutes.
Add one more scoop of batter on each pancake to make them higher.
Cover with the lid and bake 2-3 minutes more.
Check each pancake if it becomes a golden color, then gently flip it upside down.
Add another tablespoon of water and cover with the lid, bake them around 5 minutes.
Transfer to the plate, enjoy with your favorite cream or jam!