Step 1

In a small saucepan, mix together water, dashi powder, light soy sauce, mirin, and sugar over high heat until it comes to a boil. Turn off the heat and transfer to a heat proof dish or glass container. Place in an ice bath until completely cool. If eating later, place in the fridge until the sauce is completely cool.

Step 2

Cook the soba noodles according to package directions. Immediately drain and rinse with cold water or place in an ice bath to completely stop the cooking process.

Step 3

When ready to eat, garnish the sauce with sesame seeds and scallions and dip your noodles. You can also serve with grated radish or wasabi. Enjoy!