Put the vegetable oil in a frying pan and heat over medium high heat until hot. Add garlic, onion, and chopped kimchi and stir fry until the kimchi is starting to brown.
Add the rice, kimchi juice, gochujang, soy sauce, and sugar. Stir-fry throughly until well combined with high heat.
Add the sesame oil and mix them well. Remove from the heat.
Serve with sesame seeds, scallion, seaweed strips, and cooked eggs on top (optional).