Cut hot dogs in half and slice mozzarella into sticks. Skewer one piece of hot dog and one piece of cheese onto each stick. Freeze for at least 30 minutes.
In a bowl, mix flour, sugar, yeast, and salt. In another bowl, whisk warm water and egg. Combine wet and dry ingredients into a thick, sticky dough.
Cover and let rise in a warm spot for 45–60 minutes until doubled in size.
Place panko on a plate. If using potatoes, cut into cubes, toss with flour, and place on a separate plate.
Heat oil to 350°F (175°C) in a deep pot.
Dip each skewer into the batter to fully coat, then into potatoes (if using), then into panko. Press gently to help everything stick.
Fry 1–2 corn dogs at a time for 3–5 minutes, turning occasionally, until golden and crispy. Drain on a wire rack.
While hot, roll in sugar. Serve immediately with sauces of choice.
Notes
Corn Dog Gold: Pro Tips You’ll Love.
Freeze Before Frying: Freezing the skewered hot dogs and cheese for at least 30 minutes helps prevent the cheese from melting too quickly and oozing out during frying.
Tall Glass Hack: For easy dipping, transfer the risen batter to a tall glass or mug. This makes it easier to coat each skewer evenly without mess.
Potato Tip: If using potato cubes, toss them in a little flour before coating—this helps them stick better to the batter.
No Thermometer? No Problem! Drop a small bit of batter into the oil. If it sizzles and floats immediately, your oil is hot enough to fry.
Coat and Fry Immediately: After coating with batter and toppings, fry the corn dogs right away to prevent the coating from sliding off.
Sweet Finish: Rolling the hot corn dogs in granulated sugar right after frying gives them that irresistible sweet-savory flavor that makes Korean corn dogs so addictive.