Prepare all the ingredients.
In a large bowl, shape the flour into a fountain.
Add the sugar, salt, egg yolk, and the yeast dissolved in lukewarm milk.
Whisk...
...until the dough turns homogeneous.
Beat the egg whites...
until stiff...
and combine gently with the mixture.
Once the egg whites are combined, do not overwork the dough.
Cook in warm and slightly oiled pan, using a spoon to form pancakes 10-12 cm (3,94 to 4,72 inches) in diameter.
Let it get golden, then flip them over.
Remove from the pan..
...and keep warm.
To make this recipe, some of these items will be required: