Choco Ruhm Balls

A tribute to those ruhm lovers... It's easy to do when you have a CHOPPER, but a nightmare when you don't have it... mark my word for this :)
Ingredients:
1.5 to 2 packs of Marie Regal biscuits, crushed until smooth
5 tbsp of butter or margarine (I prefer white butter, but unless you're in Netherlands or Indo, it's very hard to get)
0.5 cup of icing sugar, strained for smoothness
3 tbsp of cocoa powder, strained
3 tbsp of powdered milk
ruhm to your taste (I can use up to half a bottle for this :) )
topping: icing sugar, cocoa powder, melted milk, dark or white chocolate (I use all for variety)
How to make:
1. in a mixing bowl, mix all ingredients, except for toppings, until smooth (not too sticky, not too tough)
2. form the mix into balls and line them up, chill for 10 min
3. for cocoa powder and icing sugar topping: roll the balls until all sides cover with cocoa powder or icing sugar
4. melt chocolate and place 1 tsp on top of the balls
5. chill the balls for at least 2 hours, then serve cold