Mix the eggs, sugar, a pinch of salt, vanilla, vinegar, milk and wheat flour until you get a point to roll the donuts.
Pass wheat flour in your hands to roll the donuts and not stick the dough to your hands.
In a pan put enough oil to fry the donuts. Let it heat up a little and over medium heat, add the donuts little by little and fry until golden.
Once ready, sprinkle with cinnamon sugar.