Cold sauces & condiments
Chukauni
चुकौनी · A traditional cold Nepali/Kumaoni preparation in which boiled potatoes are folded into seasoned yogurt and finished with a fragrant mustard oil tempering (tadka). Classified as a foundational cold sauce/condiment component — a reusable yogurt-potato base used as a side accompaniment.
The formula
2 medium boiled potatoes : 1 cup yogurt; tadka 1 tsp mustard oil + mustard seeds (pinch turmeric) per batch
Volume ratio roughly 2 parts potato to 1 part yogurt. Sources confirm 2 medium potatoes to 1 cup dahi (Hindi Vyas); the prior pass figure of 1.5 cups yogurt is slightly loose — verified against source as ~1 cup.
Identity
- Nepali/Kumaoni regional origin (Himalayan foothills)
- Cold yogurt-and-potato assembly, no active cooking after potato boiling
- Anchored by a mustard oil tadka with mustard seeds
- Served as a side dish with rice or thali
- Naturally vegetarian and gluten-free
- Ready in about 15 minutes
Ingredients
| Base | boiled potatoes (peeled, cubed) | 2 medium potatoes per batch; cooled before mixing |
| Culture | yogurt (dahi) | 1 cup; full-fat preferred for creaminess |
| Fat | mustard oil | ~1 tsp, used to bloom the tadka |
| Aromatics | onion (finely chopped) | 1 medium; adds crunch and sharpness |
| Aromatics | green chili (finely chopped) | 2–3; provides heat |
| Aromatics | coriander leaves (chopped) | 2 tbsp; fresh garnish |
| Seasoning | salt | to taste |
| Flavor | black pepper powder | 1/2 tsp |
| Flavor | cumin powder (jeera) | 1/2 tsp |
| Flavor | mustard seeds | tempered in oil; signature pungency |
| Flavor | turmeric (haldi) | pinch in tadka per Hindi Vyas source |
Method
- 1Boil potatoes until fork-tender, peel, cool, and cut into small cubes.Cooling prevents the yogurt from splitting on contact; uniform cubes give even coating.
- 2Heat mustard oil in a small pan; add mustard seeds (and a pinch of turmeric) until they crackle.Hot oil blooms the seeds' pungency and disperses fat-soluble flavors into the oil.
- 3In a bowl, combine potatoes, yogurt, chopped onion, green chili, and coriander.Builds the cold base before seasoning so salt and spices distribute evenly.
- 4Add salt, black pepper, and cumin powder; fold gently to coat without mashing.Mashing turns the base gummy; gentle folding keeps potato cubes intact.
- 5Pour the hot tadka over the mixture and stir once more.The hot oil flash-coarses aromatics and carries flavor into the yogurt layer.
- 6Serve immediately, or chill 10–15 minutes for a cooler side.Brief rest lets the yogurt absorb tadka notes; serves cold per regional custom.
Techniques that matter
tadka (tempering)
Blooming mustard seeds in hot mustard oil is the signature flavor step and cannot be skipped.
cold assembly
Mixing yogurt with pre-cooked potato (rather than cooking yogurt on heat) preserves tang and prevents curdling.
gentle folding
Preserves potato cube structure; vigorous stirring produces a paste.
Variations & derivatives
Himalayan home-styleNepal / Kumaon foothills
Basic potato + dahi + mustard-oil tadka; the canonical version cited by Cook Eat World and homecookingshow.
North Indian Kumaoni versionKumaon, Uttarakhand
Same dish registered as Aloo Chukauni; sometimes includes a pinch of turmeric in the tadka (per Hindi Vyas).
Spiced street-styleNepali thali shops
Adds black pepper and cumin powder for sharper warming notes.
Used in these dishes
Substitutions
- mustard oil → any neutral vegetable oil — Loses the signature pungency; reserve mustard oil for authenticity.changes result
- full-fat yogurt → low-fat yogurt — Thinner coating; add 1 tbsp milk powder or reduce by 2 tbsp to thicken.
- green chili → red chili powder — Changes character from fresh heat to toasted warmth; start with 1/4 tsp.
- cumin powder → roasted cumin powder (bhuna jeera) — Adds smokier undertone; the closest authentic substitute.
- fresh coriander → dried coriander — Loses the fresh top note; halve quantity if substituting.
Troubleshooting
Yogurt splits or turns watery
Potatoes too warm, or yogurt was thin/old. → Cool potatoes fully and whisk yogurt with 1 tsp milk powder to stabilize.
Lacks pungent bite
Tadka not hot enough or seeds under-bloomed. → Reheat oil until it shimmers and seeds crackle vigorously before pouring.
Bland, flat taste
Insufficient salt or tadka left out. → Adjust salt; ensure tadka is poured hot directly onto the surface, not stirred in cold.
Potatoes turn to mush
Over-stirring or potatoes boiled too soft. → Par-boil only until just tender; fold ingredients with a wide spoon in two strokes.