Pour 60 ml of water into a small pot Sprinkle 18 g of gelatin over the water and stir until dissolved. Bring to agentle boil.
Add the 185 ml of evaporated milk and 25 g of cocoa powder, stirring until fully dissolved.
Pour this mixture into molds, filling them halfway. Let it set in the refrigerator.
In another small pot, pour 37.5 ml of water. Sprinkle the remaining 18 g of gelatin over the water and stir until dissolved. Bring to a gentle boil.
Add the 12.5 g of whipping cream and 50 ml of sweetened condensed milk, stirringuntil well combined.
Pour this cream mixture on top of the setchocolate layer in the molds. Let it cool and set completely.