There are no substitutes for kombu and bonito flakes -- two necessary ingredients in the simple Japanese sea stock called dashi -- but they are easy to find at Asian markets, many supermarkets, and asianfoodgrocer.com.
Martha Stewart Member
I had wanted to find a recipe that could come as close as possible to replicate our favorite soup from a local Japanese Restaurant. This sounded pretty close so I gave it a try. It was really easy to make and tasted absolutely delicious. It wasn't exactly the same as the one I was trying to recreate but honestly I think I liked this one more. The hardest part about making this was finding the ingredients. Luckily I found the site efooddepot.com and they had everything it called for.