Mix the Custard Powder (1 tablespoon) with a quarter of the Milk (1 cup).
Bring the remaining milk and Brown Sugar (1/4 cup) to a boil.
Slowly add the custard mix to the milk while stirring it constantly.
Add the Marshmallow (2) and mix well. Stir constantly on low heat until the mixture thickens and coats the back of a wooden spoon.
Pass the mixture through a sieve to cash any lumps. Let the pudding cool a bit. Keep stirring constantly to prevent the top layer drying out.
Put about 2 tablespoons of Cake (1 cup) at the bottom of each serving glass. Drizzle some Sugar Syrup (to taste) on top to keep it moist.
Add 4 to 5 tablespoons of pudding.
Top with more cake crumbs. Repeat until the glasses are full.
Cover the glasses with plastic wrap touching the pudding layer. Chill for 3-4 hours or until set. Decorate with more crushed cake crumbs (1 cup) or whipped cream when serving.