Soak malagkit and ordinary rice mixture in salted water with violet food coloring for 1 hour.
Let dry overnight by putting inside a flour sack.
Put something heavy on top to squeeze out water.
Mixture is ready for cooking the following morning.
Heat steamer (lansungan) with enough water.
Put a small amount of rice mixture inside bamboo tubes (bumbong).
Attached bamboo tubes to lansungan or steamer.
When steam comes out of bamboo tubes, remove and immediately push out puto bumbong.
Top with shredded coconut and sugar before serving.