Nasi Tumpang: The Fermented Soybean Rice

Ingredients

• 800 g cooked white rice, steamed, kept warm
• For the sambal tumpang
• 200 g tempe semangit, overripe, near-decomposition tempe; pungent and deeply fermented
• 250 ml coconut milk
• 4 red chillies, ground
• 2 tsp mixed spices, ground; to the dish's standard proportion
• For the koya
• 60 g fried-dried coconut, pounded to a coarse powder
• 4 eggs, boiled
• 200 g vegetables, boiled; optional

Method

1. 1
   Pound or grind the tempe semangit with the chilli and spices to a coarse paste. The paste is ready when the fermented, ammonia-edged funk of the tempe is fully released and the mass is cohesive — the nose will confirm the pungency is live and forward.
2. 2
   Transfer the paste to a pan and pour in the coconut milk. Cook over a moderate flame, stirring continuously, until the sambal thickens and the coconut milk is fully absorbed into the paste. This is where the dish lives or dies: the sambal must reduce to a creamy, unified consistency — funky, savoury, and coating — without splitting or scorching. Sight and touch confirm it: the sambal pulls cleanly from the pan wall and holds a slow, heavy drip from the spoon.
3. 3
   Divide the warm rice between four plates or portions. Spoon the sambal tumpang generously over the rice. Add a boiled egg and, where used, the boiled vegetables alongside. Taste confirms the balance: pungent, creamy, savoury, with chilli heat arriving behind the fermented depth.
4. 4
   Finish each portion with a scattering of koya — the fried-dried coconut powder. The koya is done when it sits dry and pale gold on the surface, adding a toasted fragrance and textural contrast to the creamy sambal beneath.