Cook the noodles (or pasta) just before completely soft or al dente. They'll still have a slight bite, this is okay. Drain and set aside.
In a bowl whisk together soy sauce, sesame oil, light brown sugar, garlic, and ginger.
In a large nonstick skillet, add butter. Once the butter is melted, add in noodles, cooking on a medium-high heat to get a slight coloring on them.
Add in sauce, tossing the noodles to thoroughly combine. Cook for another 2 to 3 minutes to thoroughly meld the sauce with the noodles.
Garnish with toasted sesame seeds, serve and enjoy!
