So I am making Mars Bar slice for this afternoon, and realise I missed a couple of steps when explaining how to make it (ahem, taste test it).
When all the naughty bits are melted, make sure you grab big spoonful and eat it, whilst its hot! (Before you add the rice bubbles).
Get another great big mouthful, once you have mixed in the rice bubbles, right before you spoon it into the tray… I’m not sure which I like better. The finished product, or the still hot mixture.