Borderless Kitchen
Mini-Course→Day 4 of 5

Day 4 — Sweetness & Alcohol

Mirin & Sake.

Two ingredients that seem simple — sweetener and alcohol — but work differently from their Western equivalents because of fermentation. Understanding the difference changes how you season everything.

Why mirin isn't sugar.

Both mirin and sugar make food taste sweet. But they do so differently, and the difference matters.

Sugar

  • —

    Pure sucrose — one-dimensional sweetness

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    No complexity or depth

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    Does not contribute aroma

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    Caramelizes above 160°C into bitter compounds

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    No protein interaction (no Maillard at normal temps)

Mirin (hon-mirin)

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    Complex sugars from rice + koji fermentation

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    Subtle sweetness with umami undertone

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    Contributes aromatic depth (300+ compounds)

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    Promotes glossy, lacquered surface on protein

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    The alcohol carries aromatics and tenderizes

Practical rule: Never substitute sugar for mirin 1:1. If you must substitute, use 1 tsp honey + ½ tsp dry sake for every tablespoon of mirin. Buy hon-mirin (real mirin, 14% alcohol) not mirin-style seasoning (corn syrup with additives). The difference in cooking is significant.

Why sake isn't white wine.

Italian cooking uses dry white wine as an aromatic base — in soffritto, in pan sauces, in braises. Sake fills the same structural role in Japanese cooking but brings a different flavor profile.

Dry white wine

  • —

    Made from grapes (fructose + glucose)

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    High acidity — tartaric + malic acid

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    Tannins (especially in whites)

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    ~11-13% alcohol

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    Fruity aromatic profile

Junmai sake (dry)

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    Made from rice (polished, fermented with koji)

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    Lower acid — lactic + succinic acid

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    No tannins — softer mouthfeel

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    ~15-16% alcohol

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    Subtle umami + floral aromatic profile

Today's dish: Teriyaki from scratch.

Real teriyaki is three ingredients — soy sauce, mirin, and sake — reduced into a glaze. It is not a bottle of thick sweet sauce. Making it from scratch shows you exactly what mirin and sake do when heat is applied.

Chicken Teriyaki — From Scratch

Serves 2 — 30 minutes

The teriyaki tare (sauce)

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    4 tablespoons soy sauce (koikuchi — standard dark soy)

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    3 tablespoons mirin (hon-mirin)

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    2 tablespoons sake

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    1 teaspoon sugar (optional — adds lacquer quality to glaze)

Everything else

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    2 bone-in, skin-on chicken thighs

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    1 tablespoon neutral oil

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    Steamed short-grain rice, to serve

  1. 01

    Make the tare first: combine all tare ingredients in a small saucepan. Bring to a simmer and cook for 2 minutes until slightly reduced and the alcohol has cooked off. Set aside. Taste — it should be intensely savory, glossy, and balanced between salt and sweet.

  2. 02

    Score the chicken skin in 3-4 places to prevent curling. Season lightly with salt — not too much, the tare is salty.

  3. 03

    Heat oil in a heavy pan over medium-high. Place chicken skin-side down. Cook without moving for 8 minutes — let the skin render and crisp. The fat will pool in the pan; spoon it off.

  4. 04

    Flip. Cook the flesh side for 4 minutes. Reduce heat to medium.

  5. 05

    Pour the tare into the pan. Baste the chicken continuously as the sauce reduces — tipping the pan and spooning the glaze over the skin repeatedly. This is the 'teri' technique — the glaze builds in layers. Cook for 3-4 more minutes until the sauce is thick and lacquered.

  6. 06

    Rest for 3 minutes. Slice and serve over rice with the remaining glaze spooned over.

Fusion extension: Teriyaki Agrodolce

Italian agrodolce (sweet-sour sauce) and teriyaki tare are structurally related — both use a sweet element reduced with an acid. Fuse them:

Add 1 tablespoon of balsamic vinegar to the teriyaki tare. The result is a glaze that bridges both traditions — the umami depth of soy-mirin with the sharp acid brightness of balsamic. Use it on duck or salmon. Call it what it is: two cuisines doing the same thing.

Today's key insight

"Mirin adds sweetness the way Parmigiano adds umami — it's a byproduct of fermentation that tastes like more than what it is. That's what fermentation does: it makes simple ingredients complex."

← Day 3: The Umami SystemDay 5: Build Your Own Dish →

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