The darker, denser cousin of gulab jamun — kalo jam means black plum — is fried longer and deeper, until the outside turns mahogany-black and the inside remains a yielding fudge of chhena and khoa.
The sugar syrup is thinner, flavoured with cardamom only, no rose water. It is sold at mishti shops throughout Bangladesh and in the Bangladeshi-majority neighbourhoods of West Bengal, and it is almost unknown outside the region.
Zone: River Delta
SOURCE: Adapted from a recipe documented at a mishtir dokan in Hatibagan, North Kolkata, 2019.
LOCAL NAME: কালো জাম
INGREDIENTS
- 1 litre whole milk
- 2 tbsp white vinegar or lemon juice
- 100 g khoya (reduced milk solids — see notes)
- 2 tbsp plain flour
- ½ tsp baking powder
- Pinch of salt
- Ghee or oil for deep frying
- 600 ml water
- 500 g caster sugar
- 4 green cardamom pods (lightly crushed)
- 1 tsp rose water
METHOD
- Make the chhena: curdle the milk with vinegar or lemon juice, drain through muslin, rinse, and press under a weight for 30 minutes as per the sandesh and rasgulla method.
- Combine the chhena and khoya in a wide bowl. Knead together for 5 minutes until completely smooth. Add the flour, baking powder, and salt. Knead for a further 3 minutes until the dough is soft, smooth, and slightly tacky.
- Divide into 16 equal portions. Roll each into a smooth oval — slightly elongated rather than round, which is the traditional kalo jam shape. Ensure no surface cracks.
- Make the syrup: combine water, sugar, and cardamom in a wide deep pan. Bring to a boil, stirring until dissolved. Reduce to a low simmer. Add the rose water.
- Heat ghee or oil in a deep pan to 140°C — lower than you might expect. Fry the kalo jam in batches over low-medium heat for 12–15 minutes, turning regularly, until deep mahogany brown all over. Low and slow is essential — the outside must not colour faster than the inside cooks.
- Transfer the fried kalo jam directly into the warm syrup. They should be fully submerged. Soak for at least 3 hours before serving — overnight is better. They will darken further in the syrup and swell as they absorb it.
- Serve at room temperature with syrup spooned over.
NOTES
UK adaptation: Khoya from South Asian grocers — sold fresh or frozen. If unavailable, reduce 500ml whole milk in a heavy pan over low heat for 45 minutes until it becomes a thick, dry paste. Rose water from South Asian or Middle Eastern grocers. Everything else widely available.
US adaptation: Khoya from Patel Brothers or Indian grocery stores. Reduced milk as substitute if unavailable. Rose water from Patel Brothers, Middle Eastern grocers, or Whole Foods. Everything else widely available.
Cook’s note: The frying temperature is critical — 140°C, not the 170–180°C used for most deep frying. Too high and the outside burns before the inside is cooked. Use a thermometer if possible. The kalo jam should take a full 12–15 minutes to reach the right colour.