Silly Steamed Coffee Moist Cake

This is my first ever post about cooking experience. When I have decided to make a "steamed chocolate moist cake" I found a few recipes from the internet. Finally, I came out with my own modified recipe and tried it out just now. I took about 2 hours from preparation to fill up my tummy :D It taste soft and a bit too oily. Athough it doesn't taste like chocolate moist cake, neither its texture. The smell of peanut is too strong. However, it is overall quite satisfying.

The Ingredients:

My Recipe:
The mixture does not give any coffee fragrant. Thus, I have decided to add in the chocolate chips that I bought 2 months ago during clearance sale. It turned out into something that I really love :) Moccha flavour? Lol~
Remarks:
1. I used peanut cooking oil in my kitchen.
2. Egg used in this experiment is a Grade B egg.
3. I used the leftover HL milk in my freezer.
4. I used Anchor brand flour, got handy from my freezer.
5. I was lazy to do my shopping. Thus, I just used the 3 in 1 premixed Nescafe coffee powder in the kitchen. I actually used more than 30 grams but it does not give much flavour.
6. I could not find my baking powder so I used soda bicarbonate. If you have both, can add both.
* It did not expand much after steam. So, I think can fill the container to nearly full instead of half.

Step by step:
How would I improve it?
- use butter or margerine instead of peanut cooking oil
- strengthen the flavour (use cocoa powder or cooking chocolate or add some vanilla essence)
- use cake flour instead of common flour
* try to steam one without covering with aluminium foil