Kimchi Grilled Cheese

2 tablespoons unsalted butter, at room temperature (this is crucial)

2 tablespoons freshly grated Parmesan cheese

2 slices crusty Italian bread

3 heaping tablespoons grated Kerrygold Skellig (or other cheddar)

3 heaping tablespoons grated Monterey Jack cheese

3 tablespoons chopped cabbage kimchi

Chopped mint, for sprinkling (optional, but highly encouraged)