Instructions

1. 1
   Melt the butter in a saucepan over low heat. Whisk in the Milo chocolate powder, cocoa powder, and condensed milk.
2. 2
   Mix in the eggs and water. Cook, stirring, until thickened.
3. 3
   Remove from the heat, and stir in the biscuit pieces and cereal flakes so everything is well coated with the chocolate mixture.
4. 4
   Transfer the mixture into a mold (e.g. cake pan, aluminum tin, tupperware) that has been lined with parchment or plastic.
5. 5
   Tap the mold a few times on a hard surface to even everything out.
6. 6
   Let cool completely, then unmold and cut into slices.