In a big bowl, crack the egg then mix it with a whisk.
Pour the granulated sugar and dry yeast into the bowl, mix well.
Mix well the flour and salt, then put it into the bowl.
Pour the warm water into the bowl, mix it with the spatula first then knead the dough with your hand until smooth.
Ferment the dough for about 1 hour.
While waiting for the dough to ferment, divide the mozzarella cheese into three parts.
Skewer the sausages and mozzarella cheese.
Cut the french fries into a square shape, then place them into a bowl.
After 1 hour, coat the sausage and mozzarella cheese with the dough, not too thick.
Take the excess dough with your wet hand.
Stick the potatoes into the dough.
Sprinkle the breadcrumbs between the gaps.
In a pan, heat the cooking oil over medium heat.
Fry the hot dog until nice and golden.
After the hot dog is cooked, rest it on a cooling rack to remove excess oil.
Serve with mayonnaise and ketchup.