Combine Instant Coffee (3 teaspoon) and Water (1 tablespoon). Stir until all coffee is completely dissolved and set aside.
In a small saucepan on low heat, combine White Chocolate (200 gram) and Milk (1 1/2 cup). Stir until the mixture is smooth. Set aside to cool.
In a small jug, add Milk (1/2 cup) and Egg (2). Beat with a fork until smooth.
In a large mixing bowl, stir together Self-Rising Flour (1 1/2 cup), Bread Flour (1/2 cup) and Caster Sugar (1/2 cup). Stir in the egg mixture.
Stir in the chocolate mixture and the cooled coffee mixture.
In a two-liter oven baking dish, pour the coffee batter. Sprinkle Brown Sugar (1 cup) over the surface. Pour in Water (2 cup).
Bake at 180 degrees C (350 degrees F) for 40-45 minutes.
Allow to cool for 5 minutes.