Make the Dough

• In a bowl, whisk together the egg, sugar, and yeast.
• Add the flour, salt, and water, then mix until a sticky dough forms.
• Cover and let the dough rise until doubled in size.

Prepare the Potatoes

• Dice the potatoes into small cubes.
• Boil, then drain and let cool.
• Coat the cubes lightly with cornstarch and spread on a tray.

Prepare the Fillings

• Cut the sausages in half.
• Slice the cheese into pieces the same length as the sausage halves.
• Skewer the sausage and cheese together on sticks.

Assemble the Corn Dogs

• Wrap the risen dough around each skewer until fully covered.
• Roll in the breadcrumbs and potato cubes to coat evenly.

Fry the Corn Dogs

• Heat the oil to high and fry until golden brown.
• Reduce to medium heat and continue frying until cooked through.
• Sprinkle each corn dog with sugar.
• Drizzle with ketchup and mustard.