Wow! This was so good! We were looking for a Yaki Soba sauce recipe because we ran out of the dry seasoning that came with packaged Yaki Soba. Boy! Did we find one. We will not be buying packaged Yaki Soba again, making it fresh with this sauce from now on. The mirin is a must! It has a lot to do with what makes this sauce so good. We made 1/4 the amount called for in this recipe, and it was plenty to season noodles for 2 adults 2 kids. Thanks for sharing the recipe.