TIP: Make the Cranberry Mustard before you start the dogs.
1. Mix flour, cornmeal, sugar, salt, baking powder, and baking soda. Add buttermilk, melted butter, and egg and stir just until incorporated.
2. Pour 1 1/2 in. oil into a frying pan and heat to about 350° on a deep-fry thermometer. Dust hot dog pieces all over with cornstarch. Using a fork, dip each piece into batter to coat and drop into oil. Fry in batches, turning as needed, until golden brown all over, 3 to 5 minutes per batch. With a slotted spoon, transfer to a paper towel-lined pan and keep warm in a 200° oven until all are done.
3. Push a cocktail pick into an end of each mini corn dog and serve warm with Cranberry Mustard.
Cranberry Mustard Boil 1 cup unsweetened cranberry juice in a small saucepan until reduced to 1/4 cup. Mix with 3/4 cup Dijon mustard and 6 tbsp. packed light brown sugar. Makes 1 cup.
Note: Nutritional analysis is per piece without mustard.