Kimchi Mandu Gratin

If using frozen Kimchi Mandu, steam or boil them according to package instructions until fully cooked. Drain any excess water thoroughly.

Preheat your oven to 200°C (390°F).

In a medium saucepan, melt butter over medium heat. Add finely diced Onion and minced Garlic, sautéing until softened and fragrant, about 3-4 minutes.