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Session 138 — Dashi: The Umami Foundation

← Block 29–30: Japanese Cuisine Overview


Skill: Making kombu dashi and awase dashi; understanding umami at its source

Read first: - How to Make Dashi — the foundational technique - What Is Umami? — understanding why dashi tastes the way it does

What you're learning: Dashi is the foundation of most Japanese cooking — the broth that gives miso soup, ramen, nimono, and countless other dishes their characteristic depth. Kombu (dried kelp) contributes glutamates; katsuobushi (dried bonito flakes) contributes inosinates. Together, these two umami compounds multiply each other's effect — a phenomenon called synergistic umami enhancement. The result is a broth of extraordinary savoriness made from just two ingredients in 20 minutes.

Exercise: 1. Kombu dashi: Soak 1 piece kombu (10g) in 1 liter cold water 30 min; heat to 140–160°F and hold 10 min; remove kombu before boiling 2. Awase dashi: Bring kombu dashi to a simmer; add a handful of katsuobushi; remove from heat; steep 5 min; strain through fine cloth 3. Taste each at each stage: cold soak water, kombu dashi, finished awase dashi. Note the progression of umami. 4. Season a small cup of awase dashi with miso — make your first miso soup from scratch

Reserve: Make 2 liters. You'll use it all week.

Full Meal: Miso Soup — the awase dashi you just made, seasoned with miso, tofu, and wakame; serve with steamed rice


🎥 Compare Notes: How to Make Dashi (The Ultimate Dashi Guide) — Just One Cookbook — Nami walks through every type of dashi; compare your kombu extraction timing, katsuobushi steeping, and final clarity.


← Block 29–30: Japanese Cuisine Overview