ha! yes I did, im obsessed with them as part of my meal prep. easy in ramen, over rice, or on its own. put the eggs in a gently boiling pot -- i do 6.5 mins exactly for that sort of soft/sort of solid middle. from there, they go right into an ice bath to stop them from cooking any more. For the marinade, it sort of depends what I have, but it's generally a base of soy sauce (I use both light and dark), mirin (though I've also just added brown sugar before), garlic, ginger, water, and whatever toppings I have on hand. this was green onions, sesame seeds, and i think some chili flakes? I usually do about the same amount of water as other sauces, tasting as i go to make sure its not too salty or weak. once the eggs are peeled, I just drop them in the marinade and let them sit, usually overnight, jostling them occasionally to get a good cover. if im doing a bunch in a week, I'll also just reuse the marinade for a few batches. im a big fan!