Eggless chocolate cookies

I baked a batch of chocolate cookies today because I was in a mood to do so. Initially, I intended to roll them in sesame seeds, but changed my mind when I couldn't find they. The batch came out really well- crispy on the outside, soft inside.

200 (1 cup) gms maida
100 gms (1 cup) butter
100 gms (1 cup) granulated sugar
3 tbsp cocoa powder
1 tsp baking powder
2 tbsp milk

Method:
Preheat the oven to 180 degrees
Mix the butter and sugar well, till it appears homogeneous.
Sieve the baking powder, flour and cocoa powder together, and add to the butter-sugar mixture. Mix well so there are no lumps. If the dough does not come together, add upto 2 tbsp milk.
Grease baking tray with oil.
Divide the dough into 16 equal parts. Roll each into a ball, and press lightly.
Arrange on the baking tray and bake for 15 minutes*.
Cool well before storing in an airtight container.

* check every minute after 12 minutes, because the temperatures may vary.