Remove the cassava skin and cut into small pieces.
Grind until smooth and strain.
Put the cassava, sugar, thick coconut milk, yellow food coloring, and salt in a bowl and mix well.
Put the mixture into a greased baking pan.
Put the steaming rack into the pot and place the baking pan in the pot.
Cover the pot and press the Steam button. Set 'STEAM' for 30 minutes and press 'ON'.
When the pot beeps, release the pressure. If there is no hissing sound, press 'OFF' and slowly open the pot lid.
Cool the cake before cutting and serving. The Bingka Ubi is now ready to be served.