No Frying Cheese balls 

[Conclusion] Delicious! It tastes better with tteokbokki! It was fun to see the cheese stretch well.
[Information]
Glutinous Rice Donuts - Market
Mozzarella cheese - local mart
Tteokbokki - snack bar
[ Recipes]
1) Buy the glutinous rice doughnuts. (Choose them without sugar)
2) Make a small entrance putting cheese on a doughnut with a scissor or a knife.
3) Put mozzarella cheese in doughnut (needs true heart)
4) Heat it in a microwave or melt cheese slowly over low heat in a frying pan.
5) Don't panic even if it's slightly flattened.
6) When it's warm, try it.
7) Eating with Tteokbokki is more delicious.