In a bowl, combine peanut butter or sesame paste along with sesame seeds, Chinese black vinegar, light soy sauce, sugar, grated garlic, msg, chili oil. Mix until combined and the sauce is smooth.
Cook noodles according to package directions or desired doneness. Mix in 1/4 cup of the cooking water to the sauce mixture to create your sauce, then add the drained noodles and mix.
Top with crushed peanuts, scallions, and chili oil and enjoy!
Notes
KEY TIPS:Noodle Tips: I like to use wavy, knife cut noodles - I get them from my local Chinese grocery (99 Ranch) and the brand is called "Wu-Mu". I like these because of the mouth-feel and how the wavy bits pick up more sauce. If you can't find this exact brand, don't worry - I've noticed wavy noodles by many other company, including at Trader Joe's! You can use any noodle of your preference - the star of the dish is the savory, nutty sauce!Reserve Noodle Cooking Water: Reserve at least 1/4 cup of the water you cooked your noodles in.
1/4 cup of the water will be used to make the sauce for your Sesame Peanut Noodles.
The sauce tends to thicken quickly, so I recommend you reserve more than 1/4 cup, as you may want to use this water to loosen your sauce to your liking.
Serve Immediately: The Sesame Peanut Noodles sauce will continue to thicken as it sits after being mixed with the noodles, so I recommend serving and enjoying this dish immediately after making it.If you need to make ahead or for some reason, the dishes sit for too long, you can use some of the reserved noodle waterStorage: As a warning, these noodles will not keep well - the sauce will continue to thicken and they'll grow stuck to each other. They'll still taste delicious but the noodles will not be the same. If you do have leftovers, you can store in an airtight container in the refrigerator for 2-3 days.