Mix everything, stir well then leave for 10 to 15 minutes. Sieve into your sauce pan.
Using a balloon whisk mix well again then switch on the heat to medium and later low. Cook stirring non stop till you get the consistency of just a touch thicker than kaya (think mayonnaise) then turn off the heat quickly. Continue stirring for another minute or so so that the mixture do not lump together in the residue heat of your pot.
Get your pan ready 7x7 inches or 8x8 inches (entirely up to you and brush it with a sunflower oil (oil must be odourless) Then wipe with kitchen roll. I use a non stick pan and it always come out nicely for me. Unless you use food and heat grade plastic please don't steam with plastic. Ewwwww.
Pour your batter into pan and steam on medium high heat for 20 minutes or until you shake your pan and it will wobble a bit but not too much and you can see it's set.