In a large bowl, whisk together the seasoning packet from the instant ramen with the kewpie mayo, garlic, and egg until it comes together in a thick sauce.
Cook the instant ramen in 2 cups of water according to the cook time on the package.
Carefully pour the hot noodle water into the sauce, whisking as you go so it emulsifiers into a smooth, thick broth.
Add the noodles to the soup, top with scallions and toasted sesame seeds and enjoy hot!
Notes
Because all instant ramen is different, estimated nutrition does not include ramen. Please add to the ones on your ramen package.