Make the marinade

• Stir the soy sauce, mirin and sugar in a bowl until the sugar dissolves.
• Add the sliced garlic.

Separate the yolks

• Crack the eggs and separate the yolks, keeping them intact.
• Place the yolks in a small airtight container.

Marinate the yolks

• Pour the marinade over the yolks so they are fully covered.
• Seal and refrigerate.

Serve

• Lift the yolks out of the marinade and serve over hot rice or noodles.