
In a large stockpot, bring water to boil then add spaghetti noodles and cook according to box. Drain well when done.
In a jar of a blender, combine water, peanut butter, soy sauce, rice vinegar, brown sugar, peanut oil, sesame seeds, chili garlic sauce, sesame oil, ginger, and garlic. Process until smooth.
After pasta is done cooking and drained, add to a large glass bowl. Pour the peanut sesame sauce over the noodles and toss to coat.
Cover and refrigerate for at least one hour - the longer, the better.
Toss noodles again prior to serving. Top with fresh scallions and sesame seeds.