She said the recipe came from the Life Hack page that has been circulating (I have no idea what this is, but I like to give credit where credit is due.)
In a mug, put 1/4 cup flour, 1/4 cup sugar, 2 tbsp cocoa powder, mix.
Then add 2 tbsp, and 3 tbsp water. Mix well.
Microwave 1 minute 40 seconds.
The only modification I made was using gluten-free flour rather than regular flour. I used my go-to substitute of 1-2-3 Gluten-Free Multi-Purpose Flour and followed the directions precisely.
This is what the mix looks like prior to cooking:
After the minute and forty seconds in the microwave, it still looked a little too wet, so I added another 20 seconds.
I should have probably waited to eat it, but the idea of a brownie with a cup of coffee sounded amazing. I think it would have dried out and seemed more "brownieish" (I'm aware that's not a word) if I waited until it cooled, but I was too excited.
I'd love to hear if anyone else tries this out. Let me know what flour you used and if you made any other modifications.