Mississippi Mud Pudding

Mississippi Mud Pudding
This is one of my favorite puddings, and is so simple to make. The water and sugar / cocoa mix at the end of the recipe falls to the bottom of the pudding and makes a delicious chocolate sauce
Ingredients:
Mix Together:
2 C / 300 g Cake Flour
1 1/2 C / 315 g Sugar
20 ml / 4 tsp Baking Powder
5 ml / 1 tsp Salt
60 ml / 4 T Cocoa
Add:
1 C / 250 ml Milk
10 ml / 2 tsp Vanilla Essence
Add:
125 g Melted Margarine
Add:
1 C  / 80 g Chopped Walnuts
Mix well and pour into greased baking tin
Mix Together:
1 1/2 C / 300 g Brown Sugar
1/2 C / 125 ml Cup Cocoa
And sprinkle over batter
Pour over Pudding:
3 C / 750 ml  Hot Water
Bake at 350 F / 180 C for 40-50 minutes