In a medium bowl, whisk together the egg yolk, salt and 1 teaspoon of Sweet Yuzu Vinegar.
Whisking constantly, SLOWLY add the oil drop by drop until mayo is thickened.
It lasts about 10 days in the fridge when it's stored in a jar.
Niku Miso (Minced Meat Miso)
Heat a pan over medium heat. Wait till it’s hot (important) and add the sesame oil.
Add the ground meat and squeeze Zesty Sansho Peppercorn Miso.
When the meat is all cooked, serve hot on rice or noodles.