Pre-heat oven to 425F (220°C).
Wash and cut potatoes into bite-sized cubes. Drain potatoes on a paper towel to remove moisture.
Transfer potatoes into a mixing bowl and toss with 1-2 tablespoons oil until well combined. (Please use oil that can withstand high heat)
Place potatoes on a greased baking pan and bake for 30 mins until crispy, flipping in between.
In a heated non-stick pan with 2-3 teaspoons oil, sauté onion until translucent.
Then, add garlic and continue to stir-fry until aromatic.
Add in the sambal and give the mixture a good stir. Then, stir in coconut milk and sugar.
Finally, add the roasted the potatoes and toss them with the sauce until all potatoes are well coated.
Garnish with chopped green onions and serve warm with a side of rice