So here’s one of the new Nissin Hong Kong straight noodle variants. I had to do a little looking to find what ‘aka tonkotsu’ was. Mainly the ‘aka’ part wasn’t something I’d heard of before. As it turned out, ‘aka’ refers to the spicy cod roe (eggs) in this one. Sounds interesting! Here’s a little about the tonkotsu style of broth from Wikipedia –
