Korean Corn Dog- 감자핫도그 (Gamja Hotdog)

Name: Korean Corn Dog- 감자핫도그 (Gamja Hotdog)
Cuisine: Korean
Ingredients: 4 beef franks (or sausage, rice cake, fish cake, cheese); 4 to 8 slices cheese; 1 russet potato; 1 tsp salt; 3 cups water; 2 tbsp corn starch; 1/2 cup panko bread crumbs; vegetable or canola oil (for frying); 1 and 3/4 cups all purpose flour (spooned & leveled); 1 cup warm water (measured by volume (240 ml)); 1 packet active dry yeast (about 2 tsp); 2 tbsp sugar; 1/2 tsp salt; ketchup; mustard; sugar