Start by lightly spreading 4 grams of butter or mayonnaise on one side of each slice of your thick bread, ensuring an even coat. Cut the bread slice in half so that you have two pieces, ready to be filled.

Place one slice of the prepared bread, buttered side down, onto a clean cutting board. Add 1-2 slices of your choice of melting cheese on top of the bread. Make sure the cheese is evenly distributed.

Top the cheese layer on one half of the sandwich with approximately 30 grams of kimchi. Carefully position the second slice of bread on top, buttered side facing up.

Preheat your air fryer to 175°C (350°F) if required. Cook the assembled Kimchi Grilled Cheese inside for about 8 minutes or until the exterior is golden brown and crispy.

Check for doneness after the initial cooking time. Carefully flip the sandwich halfway through if you wish for an extra-crisp finish.

Once cooked to your liking, remove the sandwich from the air fryer or pan and let it cool for a minute. Slice the sandwich in half to reveal the melty cheese and vibrant kimchi inside.