Combine all ingredients for sauce and set aside.
Finely chop the green onions, keeping the white and green part separate. Cut broccolini into small chunks and keep them aside.
Toast the peanuts in a nonstick pan, repeat the same for sesame seeds. Keep them aside.
Bring water to boil for the noodles. Cook the noodles for half the time as directed on the package. I cooked my noodles for 3 minutes. Gently separate the noodles with fork or chopstick. (Let the noodles be in water until ready to put in the pan)
In a nonstick pan on a medium heat, add the oil followed by ginger, garlic and white part of green onions. Cook for about a minute.
Add chili flakes if using along with pinch of salt and broccolini and cook for another minute.
Stir in peanuts, sesame seeds and green part of onions. Save some for garnishing.
Strain the noodles directly into the pan, give them a big stir and then add the prepared sauce. Adjust the seasoning as per your taste.
Let the noodles cook for a minute.
Serve warm, garnish with toasted peanuts, sesame seeds and green onions.