1. Mix the flour, sugar, baking powder and salt in a bowl.
2. Add the egg and milk to the dry mixture and stir until you get a smooth dough.
3. Thread the sausages onto the skewer sticks.
4. If you want to add cheese, cut pieces of cheese and place them between the sausages.
5. Heat the oil in a deep frying pan to approximately 170-180°C (340-360°F).
6. Dip each skewered sausage into the dough until completely covered. You can use your hands to evenly distribute the dough.
7. Next, roll the sausage with dough in breadcrumbs or panko to coat well.
8. Fry the banderillas in the hot oil until they are golden brown and the dough is cooked through, approximately 3 to 5 minutes.
9. Remove the flags from the oil and place them on absorbent paper to remove excess oil.
10. Let the banderillas cool slightly before enjoying them.
You can serve Korean banderillas with sauces of your choice, such as ketchup, mustard, mayonnaise, hot sauce, or even a Korean-style sweet and sour sauce.
