This simple, speedy brownie ... mug. Microwave on high (800W) in 20-second bursts, until the chocolate and butter have melted and stir together. Mix the milk into the melted mixture. Add the sugar ...

Pop it in the mug and microwave for 2 minutes. To check if the brownie is done, look for bubbles. If you see them, it's ready. You can also insert a fork, and if it comes out clean, it's ready to ...