Fill a large pot with water, add 1 tablespoon of salt and bring to a boil.
Meanwhile make the sauce: In a saucepan combine peanut butter, soy sauce, vinegar, sesame oil, water, seasoning, minced garlic, ginger and sriracha (optional). Cook over low heat, stirring, until combined and smooth.
When the water is boiling, add the pasta and cook according to package directions.
Drain the pasta and place in a large bowl. Add the sauce and toss to combine.
Garnish with sesame seeds and chopped peanuts.
Notes:
You can replace the pasta with noodles and follow the same directions.