Batata baje: Kristang potato curry technique

Ingredients

• For the rempah
• 4 dried red chilies, soaked and drained
• 6 shallots, peeled and roughly chopped
• 2 stalks lemongrass, white parts only, sliced
• 20 g fresh turmeric, peeled and sliced
• 1 tbsp curry powder
• 800 g waxy potatoes, Desiree, Charlotte or Dutch Cream, cut into 4–5 cm chunks
• 400 ml thin coconut milk
• 200 ml thick coconut milk, added in the final 5 minutes only
• 150 g long beans (kacang panjang), sliced at an angle
• 1 tsp palm sugar, or to taste
• 3 leaves kaffir lime leaves, torn
• 2 tbsp neutral oil
• Optional garnish
• 30 g ikan masin (salted dried fish), crumbled over finished dish

Method

1. 1
   Pound or blend the rempah ingredients — dried chilies, shallots, lemongrass, fresh turmeric, and curry powder — into a fine, cohesive paste. Work the lemongrass thoroughly, since any fibrous threads left intact will stay coarse and woody in the finished curry rather than melting into the sauce. The paste is ready when it holds together and no fibrous threads of lemongrass remain visible.
2. 2
   Place the potato chunks in a pot of cold salted water and bring to a boil, starting from cold so the heat penetrates evenly to the centre rather than setting the outside before the inside has softened. Parboil until a skewer meets firm resistance at the centre — the potato is not raw-hard but yields only slightly under pressure. Drain and set aside.
3. 3
   Heat the oil in a wide, heavy pot over medium heat, then add the rempah and fry, stirring constantly, so the paste cooks through to its core rather than browning on the outside while staying raw within. Fry until the paste deepens to a rich, burnished gold and the raw smell gives way to a fully fragrant, toasted aroma — the fat should begin to separate at the edges. Insufficient frying at this stage produces a flat, raw-tasting curry.
4. 4
   Add the parboiled potato chunks to the fried rempah and turn to coat, so every cut surface is sealed in spiced oil before the liquid goes in and the potato drinks the rempah rather than merely sitting in it. Pour in the thin coconut milk, add the kaffir lime leaves and palm sugar, then simmer uncovered over medium-low heat until the sauce thickens and turns firmly golden-yellow and the potato is completely cooked through — each chunk should yield under gentle pressure without collapsing or losing its form. This is where the dish lives or dies: a potato that dissolves into the sauce produces a heavy, starchy liquid that defeats the dish entirely.
5. 5
   Add the long beans 5 minutes before the end of cooking, late enough that the residual heat cooks them through without driving off the colour and snap that make them worth eating. They should remain vibrant green and crisp-tender; yellow, softened beans are overcooked.
6. 6
   Pour in the thick coconut milk and stir it gently through the curry, adding it only at the end so it has no time to split and turn oily under prolonged heat. Cook for exactly 5 minutes, no longer — the sauce should finish smooth, round, and glossy.
7. 7
   Taste and adjust seasoning. Crumble the ikan masin over the finished dish if using, so its salt and savoury depth land on the surface where they are tasted first rather than dissolving away into the sauce. Serve immediately, or rest overnight — the potato will continue to absorb the rempah flavours and the sauce will deepen.