Quickly satisfy your chocolate craving with this easy single-serve chocolate cake in a mug.
Melt the butter in a coffee mug. Add water, vanilla and salt and stir until smooth. Add sugar, cocoa powder and flour and stir until all the lumps are out. Cook in the microwave for 30-40 seconds. If you want less "lava" and more cake you can cook it for 10 seconds more. You may have to adjust the cooking time since all microwaves cook at different speeds.
I've noticed a huuuuuuuuge difference in flavor depending on what type of cocoa powder I use. I recently cheaped out and bought a weird off-brand. Major buyer's remorse!! The higher quality good cocoa powder definitely tastes better.