Snap the stem end off of each green bean and snap the longer beans in half. Place the snapped green beans in a colander and rinse well.
Place the rinsed green beans in a medium pot and add enough water to just come up to the top of the green beans. Bring the pot to a boil, with a lid, and let boil for about 5 minutes or just until tender. Alternatively, you can steam the green beans if you have a steaming basket.
Drain the boiled green beans. Add the butter, brown sugar, and sambal to the warm pot (with the burner turned off) and mix until combined. Add the drained green beans back to the pot and toss to coat. Add a pinch of salt and serve.