Bihari Aloo Chaat

Method

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   About Bihari Aloo Chaat: Aloo Chaat is sold at every Bihari market, fair, railway station and roadside stall. Crispy fried potato cubes are tossed in chaat masala then drizzled with tamarind and green chutneys, topped with raw onion and lemon. Served in paper cones or small steel bowls, it is the quintessential street snack — and one of the easiest to make at home.

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   Choose the right potatoes: Use 4 medium starchy potatoes — the kind sold for chips or roasting (russet, Maris Piper, or any floury Indian variety). Waxy salad potatoes do not crisp up the same way and stay too firm in the centre.

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   Peel and cube: Peel the potatoes. Cut into 1.5cm cubes — uniform size matters for even frying. Drop the cubes into a bowl of cold water as you go to prevent browning.

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   The critical par-boil step: This is the secret to crispy outside, fluffy inside chaat potatoes. Drain the cubes. Place in a saucepan with fresh cold water and 1 tsp salt. Bring to a boil over high heat, then reduce to medium. Cook for exactly 4 minutes — the cubes should be just par-cooked, with a slightly softened outside but firm centre.

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   Drain and dry thoroughly: Drain the potatoes in a colander and let steam dry for 5 minutes. Pat dry with a kitchen towel. Wet potatoes splatter dangerously in hot oil and produce limp, oil-soggy chaat.

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   Let potatoes cool slightly: Spread the par-boiled potatoes on a plate. Let cool to room temperature for 10 minutes. The cooling step lets the surface starches set up, which is what creates the crispy shell when fried.

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   Heat the oil: Pour neutral cooking oil into a deep heavy-bottomed pan to a depth of at least 5cm. Place over medium-high heat. Test with a piece of potato — it should sink briefly, then rise to the surface within 5 seconds with steady bubbles around it. If it browns too fast, the oil is too hot; reduce heat.

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   Fry to deep golden: Add the potato cubes in batches — never crowd, or the temperature drops and they go soggy. Fry for 5-6 minutes per batch, turning with a slotted spoon, until deep golden brown and crispy on all sides. The colour should be like roasted peanuts, not pale yellow.

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   Drain on a wire rack: Lift out with a slotted spoon and drain on a wire rack rather than paper towels — paper towels trap steam and make the bottom go soft. The wire rack lets air circulate and keeps every side crispy.

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    Keep warm: If frying multiple batches, keep finished cubes warm in a 100C oven on the wire rack while the rest fry. Do not stack — stacking softens them.

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    Prepare the toppings: Take 1 small red onion and finely dice. Take a small handful of fresh coriander, wash and chop finely. Halve a fresh lemon and have it ready.

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    Have the chutneys ready: You need 1 tbsp tamarind chutney (sweet-sour brown) and 1 tbsp green coriander chutney (sharp herby). Recipes for both are in this database (ids 1358 and 1359). Both keep in the fridge for several days.

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    Dry-roast the cumin: For the freshest chaat masala flavour, take 1 tbsp whole cumin seeds in a small dry pan over medium heat. Toast for 90 seconds, shaking often, until darkened and deeply aromatic. Cool and grind in a mortar to coarse powder. Use 1/2 tsp here.

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    Assemble in a wide bowl: Tip the hot crispy potatoes into a wide mixing bowl. Sprinkle 1 tsp chaat masala, the 1/2 tsp roasted cumin powder, salt to taste — about 1/4 tsp because chaat masala already has salt — and toss quickly to coat every piece while still hot.

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    Add the chutneys and toppings: Drizzle 1 tbsp tamarind chutney and 1 tbsp green chutney over the potatoes. Add the chopped raw onion and chopped coriander. Squeeze the juice of half a lemon over everything. Toss once more, very gently, with a spoon.

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    Serve instantly: Aloo Chaat must be served immediately while the potatoes are still hot and crispy. Within 5 minutes the chutneys and lemon juice start softening the potatoes. Pile into small bowls or paper cones. Top with extra sev (chickpea flour noodles) for crunch if desired. Eat fast.