Cook the noodles according to package instructions till al dente, and immediately drain and rinse the noodles under cold water;
Transfer to a bowl, toss the noodles with 1 tablespoon of sesame oil, to prevent sticking;
In a nonstick pan, toast the sesame seeds over medium heat till golden brown and you can smell the aroma;
Ground the toasted sesame seeds in your mortar and pestle set till a buttery paste forms, or, pulse in your food processor till creamy;
Mix together the sesame paste, peanut butter, soy sauce, vinegar, coconut amino, syrup, minced garlic, and chili oil if you like a little kick, stir till everything is mixed well and the sauce is smooth;
Julienne the cucumber and thinly slice the radishes;
Pour the sauce into the noodles and toss to combine evenly;
Serve with the fresh veggies on the side, garnish with chopped peanuts and sesame seeds, enjoy!