01 - Pat the beef franks dry with paper towels. Insert a wooden skewer or toothpick into each piece, leaving enough to hold as a handle. Set aside.
02 - In a large bowl, whisk together the flour, cornmeal, sugar, baking powder, baking soda, salt, and black pepper until well combined.
03 - In a separate bowl, whisk the milk, eggs, and melted butter until smooth and uniform.
04 - Add the wet ingredients to the dry ingredients and mix until a thick, smooth batter forms without lumps.
05 - Heat 2 inches of vegetable oil in a deep pot or Dutch oven to 350°F.
06 - Pour the batter into a tall glass or jar to facilitate easy dipping of the skewered franks.
07 - Working in batches, dip each skewered frank piece into the batter to coat completely, then carefully place into the hot oil. Fry for 2-3 minutes, turning as needed, until golden brown and crisp.
08 - Remove with a slotted spoon and drain on a paper towel-lined plate. Serve warm with yellow mustard for dipping.