Place the pork belly in a pot, add in half of the coconut milk and red curry paste, stir to combine. Cook until the pork is done. Then add in 250ml of water.
Cook for 15-20 minutes.
In the meantime, cook the rice in a rice cooker. Add 1 cup of rice with 2 cups of water.
Add in the rest of coconut milk and water spinach. Season with palm sugar, sugar, fish sauce, salt, tamarind concentrate, simmer for 15-20 minutes. When the oil starts to show up at the surface, it is done. Tear in kaffir lime leaves, remove from heat.