We used to make dough ball bait for carp.
Mix equal parts flour and corn meal in a bowl--for example, 1/2 cup flour and 1/2 cup corn meal.
Put the same amount of water (in this case, 1/2 cup) into a pot. Add a liquid flavor or scent, such as vanilla, licorice or garlic. Start with 1 tbsp. of flavor, but you can add more if desired. Boil the water and scent mixture.
Add the flour and corn meal to the pot once the water boils. Turn the heat down to simmer and remove from the heat once the water has been completely absorbed.
Knead the dough with your hands until you get your desired consistency. Then roll the dough into small balls, making the balls the right size for your hook and fish size.We used treble hooks.
You can substitute sour milk for the water.