In a mixing bowl put maida, sugar,cocoa powder, salt, baking powder and mix well.

Next mix milk and oil.
Add this mixture into the dry mixture gradually and mix all well.Adjust consistency.

Add vanilla essence and mix again. Preheat microwave oven at 180 degrees for 10 minutes at convection mode.
Cake batter is ready.Pour into moulds.

Take for baking at 180 degrees for 3 minutes in microwave oven.

Leave it to cool.Demould carefully.

Prepare chocolate sauce.
Place a pan with water.let it boil.Add sugar and let it dissolve.Next add cocoa powder and stir in to mix it well.

Next add slurry of water and cornflour into the cocoa mix. Stir well. Let it be on slow flame till it thickens and attain required consistency.

Add vanilla essence and mix.
As it cools it will thicken more, so accordingly adjust consistency.

As it cools. Transfer to an airtight container. You can store it in fridge.

As cake, chocolate sauce and ice cream are there. Assemble.

Take chocolate cupcake.Put hot chocolate sauce over it. Put ice cream and some more chocolate sauce and enjoy....Add in some gems, silver balls (optional)