Peel the kumala (sweet potatoes) and cut them into large chunks.
Place the kumala in a large pot and cover with water.
Bring to a boil over medium-high heat and cook until the kumala are tender, about 20-25 minutes.
Drain the kumala and return them to the pot.
Add the butter, brown sugar, ground cinnamon, ground nutmeg, and a pinch of salt to the pot with the kumala.
Mash the kumala with a potato masher or fork until smooth. For a creamier texture, you can add coconut milk and continue mashing until well combined.
Transfer the mashed kumala to a serving dish.
Garnish with fresh parsley if desired.
Enjoy your meal!