In your microwave-safe mug or Pyrex cup, mix:

Dry: flour, sugar, baking powder, cocoa, salt

In a separate bowl, mix wet together: egg if used,
milk, oil

Add wet to dry, mix well, fold in nuts or chocolate chips if using.

Microwave 3 minutes in 1000 watt oven or 4 minutes in 700 watt oven.

It will puff up and may fall again!

Remove from oven, pour glaze on top if using,

Let cool a couple of minutes and….

Voila!