Chocolate Chips Muffins

I have a habit of copying/printing recipes in the hope of doing them sometime later.  I cant remember where I had copy this recipe..Nevertheless it turn out quite well.

Chocolate Chips Muffins

Ingredients Required
A.  1 cup of butter - melt
     2 cups of fresh milk
     2 eggs - whisk slightly
     1 tsp of essence vanilla

B.  3 cups of flour (I used all purpose flour)
     1/2 cup of cocoa powder
     2 tsp of baking powder
     1/2 tsp of bicarbonate powder
     2 cups of brown sugar

1/2 cup of chocolate chips
muffin papers

note : I did not use cocoa powder, subsituted cocoa powder with flour too.

How to Prepare

1. Preheat oven at 190C, 10-15mins.
2. Prepare muffin cups on trays or muffin trays.
3. Mix all ingredients of B till well incorporate.
4. In a different bowl, whisk all of A ingredients till well mix.
5. Add gradually of B into A, whisking till no lumps and mix well
6. Fill the muffin cups 3/4.
7. Add in chocolate chips on top of the batter.
8. Bake at 20mins or till it is done.
9. Remove on rack, cool and serve.