Place the chocolate and condensed milk in a microwave safe bowl and heat very gently in the microwave until the chocolate has melted. Stir together then add the fresh milk and stir until combined.
Crumble the brownie into the bottom of 2 serving glasses. Drain the cherries, reserving the juice. Add a tablespoon of the cherry juice to each glass over the brownie. Tumble in a few cherries on top of each and add a layer of the chocolate mixture. Squirt a little cream or dollop a spoonful of creme fraiche on top of the dessert and finish with a final cherry on top.