Cut cheese into 3 lengths, cut frankfurter into 3. Skewer one piece each on each skewer. Cover and place in the fridge until batter is ready.
Mix first 4 dry ingredients. Add plant-based milk. Cover and let stand 30 - 60 minutes.
When batter is nearly done proofing, start to heat oil in a pot. Use enough oil so the corn dogs can be completely submerged for deep-frying. Place panko in a shallow dish. Place hash browns in another shallow dish; keep cold.
Place one skewer in the batter and roll to cover all sides. Use a silicone spatula to spread batter in an even layer, making sure to cover the cheese completely and remove excess batter.
Roll battered skewer in hash browns, then into the panko. Sprinkle panko so all the batter is well covered. Shake off excess. Repeat with the remaining skewers.
Frying temp: 350°-375°F. Submerge the skewers and use tongs to turn occasionally until all sides are golden brown. Take them out before they are as dark as you would like them. Place on paper towel-lined cooling rack to remove excess oil.
Immediately sprinkle with additional sugar or sweetener. Serve with ketchup, mustard, or your choice of condiments.
