Crack the egg into a bowl, and add two circular squeezes of mayonnaise.
Add about as much soy sauce as the amount of egg yolk.
Mix together very well, until there are no more lumps of mayonnaise.
Heat some oil in a frying pan, and cook the egg while stirring well. Take off the heat when it's soft-set, gather together so it cooks a bit more with the residual heat, and mound on top of a bed of hot rice.
Done! Mix well before enjoying it.
If you add some bonito flakes and soy sauce, or yukari powder (salted and dried red shiso leaves), cubed cheese and so on, this takes on a different but just as delicious character.
Variation: Add some mentaiko (spicy pollack roe) and even more mayonnaise.
Turn this into a simple fried rice. Add some zha cai (Sichuan salted vegetable) and green onion to make it even better!
Another variation: Add some wakame seaweed. Great texture!
Another variation: Add some aonori, shirasu salted tiny sardines and cheese and stir-fry to make fried rice. A great calcium-rich dish.
Story Behind this Recipe
I heard somewhere that omelets turn out fluffy if you add some mayonnaise to the egg, so I thought: rather than using mayonnaise as a hidden ingredient why not add plenty of it so you can taste it. The result was something that was surprisingly delicious.
The amount of mayonnaise and soy sauce is approximate. Please refer to the photos. It may seem like a lot of each, but since it's all mixed up with rice afterwards you need to flavor it rather strongly or it won't taste so good.