Prepare the ingredients by chopping the green onions and sausage, and mincing the garlic.

In a bowl, combine the Shin Ramyun seasoning packet, chopped green onions, cheddar cheese, mayonnaise, sausage, minced garlic, and an egg yolk.

Boil water in a pot and cook the Shin Ramyun noodles.

While the noodles are cooking, mix the sauce ingredients in the bowl.

Add the cooked noodles to the sauce bowl, along with a little of the hot noodle water. Mix everything together until the noodles are evenly coated and the sauce is creamy.