In a shallow dish or bowl, combine the corn flour (or cornmeal), gluten-free flour blend, baking powder, sugar, and kosher salt. Mix well to combine.
Add the beaten egg and milk and mix until well combined.
Heat the canola oil in a deep fryer or large pot to 350°F.
While the oil is heating, insert bamboo skewers or lollipop sticks into the hot dogs, leaving about 2 inches of the stick exposed for handling. Then dip each hot dog into the batter, ensuring it's fully coated.
Carefully place the coated hot dogs into the hot oil, a few at a time, depending on the size of your fryer or pot. Be cautious not to overcrowd the oil.
Fry the corn dogs for about 2-4 minutes, turning occasionally, until they are golden brown and crispy on all sides.
Using tongs, carefully remove the cooked corn dogs from the hot oil and place them on a plate lined with paper towels to drain any excess oil. Serve hot with your favorite condiments such as ketchup, mustard, or relish. Enjoy!
Notes
The batter can be made up to 3 days in advance and stored in the refrigerator.
Try adding a pinch of paprika, cayenne pepper, or a teaspoon of dried herbs for a flavor boost.
Don't overcrowd the oil. This will lower the temperature of the oil and cause the corn dogs to turn out greasy.
If the batter is falling off of the corn dogs as they cook, try chilling it for 30 minutes before continuing.
This batter is great for dipping other foods, like sausages or pickles!
To store: place gluten-free corn dogs in an airtight container in the refrigerator for up to 3 days.
To freeze: wrap them in plastic wrap to store for up to 2 months.