Aloo ko Achar: Dress the Potatoes in Two Stages
Aloo ko achar
The potatoes are boiled, but the dressing still has work to do. In this Nepali achar, toasted sesame supplies the coating and a final addition of seasoned oil brings the turmeric and fenugreek through the bowl.
The first dressing
Sesame does more than garnish
Aloo ko achar brings boiled potato pieces together with sourness, spice and ground sesame. A recipe reproduced from The Joys of Nepalese Cooking in Nepali Times gives a particularly clear sequence: toast the seeds, grind them, mix them with the potatoes and lemon, then add oil seasoned separately with fenugreek and turmeric. Understanding those two stages makes the dish easier to cook.
There is room to choose the sesame texture. Ai Akiyama, writing in Shimane University’s HIPIS newsletter about a dish she ate growing up in Nepal, grinds roasted sesame coarsely. The NepaliAustralian cook instead blends the toasted seeds with water into a finer paste. Both preparations put sesame throughout the dressing; leaving every seed whole would change that coating.
For the adaptation here, stop at a gritty meal and fold it through the vegetables with lemon juice. Add only enough water to help it cling. The useful contrast is between the dressing and the intact potato underneath, so cook the potatoes until tender and handle the pieces gently.
The second dressing
Season a little oil, then fold it through
The potatoes do not need to fry in this oil. In both the Nepali Times and Akiyama accounts, fenugreek is heated separately before the turmeric joins it; the seasoned oil then goes over the potato mixture. Set the dressed vegetables in a heatproof bowl before starting this quick final step.
What joins the potatoes varies. The UK Nepal Friendship Society’s home-cooking book describes a cucumber version learned at a friend’s home in Kathmandu, with the sourness adjusted to preference. Its method removes the cucumber’s watery centre and keeps the boiled potatoes firm. NepaliAustralian includes carrot and onion as well. Our shorter cucumber version keeps the focus on the dressing and the difference between crisp cucumber and tender potato.
Mustard oil appears in the Nepali Times and NepaliAustralian recipes. Akiyama also allows vegetable oil; the home adaptation below takes that option. Her serving memories include poori, and she suggests rice too. A small portion of this sharp side dish can sit beside the rest of a meal without needing an elaborate menu of its own.
A cucumber version to make at home
Potato and cucumber aloo ko achar
Makes 4 side servings. Allow about 1 hour 10 minutes: 20 minutes preparation, 30 minutes cooking and 20 minutes chilling. This untested home adaptation combines the ground-sesame and tempered-oil methods below. It uses neutral vegetable oil, an option in Ai Akiyama’s recipe, and a short seasoning list; it does not reproduce any one household’s version.
Ingredients
Vegetables and sesame dressing
- 600 g small waxy potatoes, roughly 3–4 cm across, scrubbed
- 200 g cucumber, washed
- 30 g white sesame seeds
- 30 ml / 2 tbsp lemon juice, plus up to 15 ml / 1 tbsp more to taste
- Up to 30 ml / 2 tbsp drinking water, added only as needed to loosen the dressing
- ½ tsp red chili flakes
- ½ tsp fine salt, plus more to taste
Spice oil and finishing
- 30 ml / 2 tbsp neutral vegetable oil, such as sunflower oil
- ½ tsp fenugreek seeds
- ½ tsp ground turmeric
- 10 g fresh coriander leaves and tender stems, washed and finely chopped
Method
- 1
Boil without breaking up.
Cover the whole potatoes with cold water in a saucepan. Bring to a boil, then simmer gently for about 15–20 minutes, until a thin knife reaches the centre easily. Drain. When cool enough to handle, peel and cut into roughly 2 cm pieces. They should be cooked through and hold their shape.
- 2
Toast, cool and grind.
While the potatoes cook, stir the sesame in a dry frying pan over medium-low heat for 3–4 minutes, until lightly golden and fragrant. Transfer immediately to a plate. Once cooled, grind in a spice grinder or mortar to a coarse meal, with most seeds broken.
- 3
Dress the vegetables.
Quarter the cucumber lengthways; scoop out the core if it is watery, then cut into bite-size pieces. Put it and the potatoes in a large heatproof bowl. Fold in the ground sesame, 30 ml lemon juice, chili flakes and salt. Add the measured drinking water a teaspoon at a time only if needed for the sesame to coat the pieces.
- 4
Finish with spice oil.
In a small pan over medium heat, warm the oil with the fenugreek seeds until they turn deep brown, watching closely. Remove from the heat, stir in the turmeric for about 10 seconds, then carefully pour the seasoned oil over the vegetables. Fold gently until evenly coated; add all the chopped coriander.
- 5
Chill, taste and serve.
Cover and refrigerate for 20 minutes. Taste a dressed potato and adjust salt or add some of the extra lemon juice. Serve as a side with rice or a meal of your choice. This is fresh, perishable achar: keep it refrigerated at 4°C / 40°F or below, and limit total time out of refrigeration to 2 hours, or 1 hour above 32°C / 90°F. The lemon is seasoning, not a preservation process.
Research notes
Sources and recipe notes
Four culinary accounts support the dressing sequence and its variations. The quantities and simplified seasoning above are an editorial adaptation; storage guidance follows the FDA.
- Nepali Times — Potato (2002) Includes aloo ko achar from The Joys of Nepalese Cooking: ground toasted sesame, lemon and a separate fenugreek-turmeric oil finish. Historical production figures are not used here.
- Ai Akiyama — Nepali-style potato salad, HIPIS vol. 9 PDF page 4: cucumber, coarse sesame, separate oil tempering, vegetable-oil option and firsthand serving memories from Nepal.
- NepaliAustralian — Aloo ko achar (2012) A personal preparation with wet-ground sesame, cucumber, carrot and onion, followed by tempered spice oil.
- UK Nepal Friendship Society — Traditional & Contemporary Nepali Home-Cooking Printed page 55 (PDF page 56): cucumber-potato achar, texture, adjustable sharpness and a firsthand account of learning the dish in Kathmandu.
- FDA — Are You Storing Food Safely? Current refrigerator temperature and limits on time perishable foods spend at room temperature.


