Microwave chocolate self-saucing pudding

Name: Microwave chocolate self-saucing pudding
Prep time: 10 min
Cook time: 15 min
Total time: 25 min
Ingredients: 193.13 gm milk; 75g butter, chopped; 2 teasponns vanilla extract; 161.25 gm caster sugar; 187.50 gm self raising flour, sifted; 32.50 gm cocoa powder, sifted; 100g milk chocolate, roughly chopped; 90.00 gm brown sugar; 437.50 gm boiling water; Caramel ripple or honeycomb ice-cream, to serve; Icing sugar, to serve