Move the tray around until the sides of the cube moulds are coated in chocolate. Set aside in a ... in a small bowl and stir in the condensed milk until it sticks together but isn’t sloppy.

Place the rounds on the prepared baking tray, brush the tops with milk and bake for 15 minutes, or until well risen and nicely browned. Place the remaining chocolate in a heatproof bowl over a pan ...