steam haw flakes cake

Got this recipe from my sister-in-law, haven't got a chance to make it yet, but i want to write it down before i forget. will definitely post a picture once i do it

200g butter
90g sugar
200g marie biscuits (crunch till powder)
5 eggs
haw flakes

beat sugar and butter till fluffy
add in eggs
then marie biscuits

pour in one layer of batter and haw flakes, alternating it depending on your desire thickness

Steam it for 40 minutes in medium flame

* marie biscuits can be replace by cream cracker (increase sugar slightly)/ cheese cracker