In a large frypan sauté the garlic and onion in the olive oil on low heat for 5 minutes. Stirring occasionally, do not let them burn.
Meanwhile, prepare the udon noodles according to package directions. Once they are done save ⅓ cup starchy noodle water.
Once the onion and garlic are done sautéing, add the coconut milk, lime juice, maple syrup, and salt. Simmer on low heat for 10 minutes, until slightly thickened.
In a small bowl mix together the cornstarch and water to create a slurry. After the 10 minutes of simmering add it to the pan with the sauce. Stir frequently with the heat off to thicken the sauce. Taste the sauce and add more salt if preferred.
Add the cooked noodle and toss to coat in the sauce. Let them sit in the sauce for 1 minute to soak it up. If you feel the sauce is getting too thick you can add in a tablespoon of the preserved starchy water. Adding more in as you see fit.
Top with coconut chips, green onion and sesame seeds.