Chocolate cake in bowls

Click on this link to find out how to melt butter?http://www.wikihow.com/Melt-Butter

I got this receipy from  https://www.youtube.com/watch?v=x2wRQHJgTqU

150 grams Sugar
2 Large Eggs
100 grams Milk
1/2 teaspoon Salt
2 tablespoon Cocoa Powder
1 teaspoon Vanilla Essence
250 grams Plain Flour
2 tablespoon Baking Powder
120 grams Melted butter

1. Beat sugar and eggs.
2. Add in milk, salt, cocoa powder, vanilla essence, plain flour, baking powder and melted butter (Add flour & melted butter alternately).
3. Grease mould with butter. Fill the mould 90% full.
4. Steam for 12-15 minutes.