Bring 12 cups of water to a rolling boil. Add salt and ramen noodles. Stir occasionally and cook 30 seconds less than the package directions. Drain and rinse under cold water for about 15 seconds to prevent sticking. Shake off excess water well.
In a glass measuring cup or wide-mouth mason jar, whisk together all sauce ingredients until smooth and fully combined.
Thinly slice the green onions until you have about 2/3 cup, reserving a small amount for garnish. If using, finely chop the cilantro.
Thoroughly dry the pot used to cook the noodles and return the drained noodles to it. Add green onions, cilantro, and sesame seeds. Pour the sauce over the top and gently toss with tongs until evenly coated.
Garnish with chopped peanuts and reserved green onions, if desired. Serve immediately.
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Notes
Note 1: Discard the seasoning packets and use only the noodles.Note 2: Refrigerated garlic and ginger paste make prep easier and distribute more evenly in the sauce. You can also use garlic and ginger cubes. Fresh garlic or ginger works, but whisk well to prevent settling.Note 3: Adjust Sriracha to taste. Note reducing it will lower both the heat and overall depth of flavor.Leftovers: Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat gently and add a splash of water to loosen the sauce if needed.