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Aaruul

Mongolian dried milk curds

Aaruul are the hard, sour little curds that dry on the roofs of gers all over Mongolia in summer, when the herds give the most milk, and they are carried in pockets as a snack through the long winter. Milk is soured and boiled until the curds separate, then strained, pressed, cut into pieces and dried in the sun and wind for days. They are chewed slowly, almost like a sweet, and offered to guests. This home method dries them in a very low oven. A common mistake is under-drying; any moisture left lets mould grow. Chef's tip: stir a little sugar into the curd if you want the softer, sweeter style sold in Ulaanbaatar markets.
Total time
510 min
Difficulty
medium
Serves
12
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Ingredients

Serves12
  • 12 ½ cups whole milk
  • 9 oz plain live yoghurt
  • 2 tbsp sugar (optional)

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What you'll need

Spices & pantry

Fresh ingredients (2)

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Method

0/5 done
  1. Step 1: Stir 9 oz plain live yoghurt into 12 ½ cups whole milk in a large pot, cover and leave at warm room temperature for 12–24 hours until it has set and soured like thin yoghurt.

    720 min
  2. Step 2: Heat slowly over a medium-low heat, stirring gently now and then, until it comes to a simmer and the curds clearly separate from the greenish whey, about 30–40 minutes. Do not let it boil hard.

    40 min
  3. Step 3: Ladle into a colander lined with muslin, let the whey drain, then tie up the cloth and hang it or press it under a weight for 1 hour until firm. Stir in 2 tbsp sugar at this point if using.

    60 min
  4. Step 4: Unwrap and cut or shape into small pieces, about 3 cm long and 1 cm thick.

    15 min
  5. Step 5: Lay on a rack and dry in the oven at its lowest setting (50–140°F) with the door propped open for 6–8 hours, or in a dry, airy, sunny place for 2–3 days, until rock hard right through. Store in an airtight jar.

    480 min

Nutrition per serving

Calories
60 kcal
Protein
6 g
Carbs
3 g
Fat
3 g
Fibre
0 g

Nutrition values are estimates.

K
Recipe by

KrazyBadal

All recipes by this chef →

Good to know

How long does aaruul take?
About 510 minutes in total: 30 minutes to prepare and 480 minutes to cook.
How many people does it serve?
12 as written. Change the servings above the ingredients and every amount scales to match.
Is it vegetarian?
Yes. It has no meat or fish.
Is it gluten free?
Yes, as written. Check the labels on stock, sauces and spice mixes, which sometimes contain gluten.
Can I make it ahead?
Yes. It keeps well, so you can cook it earlier in the day or the day before and reheat it.
What can I use instead of whole milk?
Semi-skimmed milk with 1 tbsp cream per 240ml (1 cup).
What can I use instead of plain live yoghurt?
Sour cream or buttermilk, same amount.

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