Charred Scallion Miso Steak Sauce

A chunky relish for steak, not an emulsified pour. There’s no sesame oil here on purpose — the hard char carries the entire smoky, nutty load, so the char has to be aggressive or the sauce reads flat.

Flavor profile

• Smoke / bitter — hard-charred scallion
• Umami / salt / sweet body — white (shiro) miso
• Acid — lime
• Salt depth — soy
• Fat / body — neutral oil
• Aromatic — grated garlic

Ingredients

• 6 scallions
• 3 tbsp white (shiro) miso
• 1 lime, juiced
• 1 tbsp soy sauce
• 1 tbsp mirin
• 3 tbsp neutral oil
• 1 garlic clove, grated
• 1 tsp honey

Instructions

1. Char the scallions whole in a dry, screaming-hot heavy pan, turning once, until blackened in spots and limp, 4–6 minutes. Real char, not just wilt.
2. Cool enough to handle, then rough chop — keep the blackened bits.
3. Loosen the miso first: mash a spoonful against the bowl with the liquids before folding in everything else. This is the key step when mixing by hand; skip it and the miso clumps instead of distributing.
4. Fold in the scallions, garlic, and oil. Stir again before serving — it separates as it sits.

Levers

• Grate the garlic rather than chopping, so no raw bits stick out.
• Honey and mirin are the sweetness; cut the honey for a sharper sauce.
• For a glossy, emulsified pour that clings instead of sitting on top, blend the same ingredients with 2 tbsp water while streaming in the oil. Trades the char-bit texture for coating, and keeps about a week refrigerated.

Failure modes

• Don’t add sesame oil back — it buried the char in the first version.
• Weak char → flat sauce, since nothing else carries the smoke.
• Clumpy miso from folding it in dry instead of loosening it first.