Add all ingredients to a blender and blend until smooth & creamy.
Transfer mixture to either one medium-sized or two small-sized glass storage containers (I used Pyrex).
Optionally mix in ½ tsp flaky salt with each mixture.
Smooth out with a spatula, cover with a lid, then steam for about 40-50 mins (I used bamboo steamers but feel free to just use a strainer over a pot with boiling water; I'd recommend putting a lid over everything).
Remove from the steamer, rest 30 mins, then pop in the fridge to set up for at least 4 hours but preferably overnight.
Take out, slice into wedges, and enjoy!
