200g of molten butter, with 1.5 cups of sugar; nearly half an hour of mixing on medium-low heat barely persuaded sugar sand to half-dissolve, with a couple of tablespoons of water poured in. Once 1 cup of milk powder pre-mixed with half a cup of cocoa powder was folded in, the sugar sand reappeared, as can be seen in the photograph. And a liquid separated - probably water with some cocoa powder dissolved in it.
Any ideas on how to get the sugar dissolved?
My only idea currently is to throw cooled down mixture into sharp-blades blender - maybe, the sugar will be turned into icing sugar. But the quantities are too high, will take a while in this tiny blender. Oh, and throw some coconut oil into the mix.
There is another question like Sugar won't dissolve in cacao butter which suggests using finely powdered sugar, but I would prefer to start with normal sugar and figure out how to dissolve it.