What are some fun mug cakes I can make?
user
Here are three fun mug cakes to try, and a warning: if you’re baking with chocolate (or even, to a lesser extent, with other sorts of sweets) be sure to have a strong broom, mop and dust pan, as you’re likely to have a small explosion.

The first one is a brownie (or fudge, or chocolate cookie) using marshmallows in the middle. This works best if you spread the melted marshmallows on top of a brownie that’s half done and put the finished brownie in the fridge for 15 minutes, to firm it up. This is the first mug cake that I know how to make.

A popular second mug cake is with vanilla ice cream and strawberry sauce, with a chocolate or graham cracker crust.  
A third mug cake I know how to make is chocolate mousse.  Start by heating up some milk in the microwave for about 30 seconds, and then add a tablespoon of cocoa powder and stir well.  Add a couple spoonfuls of dark chocolate or coffee chocolate, and then microwave again for another 30 seconds, until melted.  Once cooled, stir in a little sour cream.  Then pour this into a
assistant
I don't want any that will explode!
user
The brownie and mousse were probably OK in the microwave, but the marshmallow and strawberry cakes are very prone to exploding.
assistant
What are some fun mug cakes I can make?
user
Here are three fun mug cakes to try, and a warning: if you’re baking with chocolate (or even, to a lesser extent, with other sorts of sweets) be sure to have a strong broom, mop and dust pan, as you’re likely to have a small explosion.

The first one is a brownie (or fudge, or chocolate cookie) using marshmallows in the middle. This works best if you spread the melted marshmallows on top of a brownie that’s half done and put the finished brownie in the fridge for 15 minutes, to firm it up. This is the first mug cake that I know how to make.

A popular second mug cake is with vanilla ice cream and strawberry sauce, with a chocolate or graham cracker crust.  
A third mug cake I know how to make is chocolate mousse.  Start by heating up some milk in the microwave for about 30 seconds, and then add a tablespoon of cocoa powder and stir well.  Add a couple spoonfuls of dark chocolate or coffee chocolate, and then microwave again for another 30 seconds, until melted.  Once cooled, stir in a little sour cream.  Then pour this into a
assistant
I don't want any that will explode!
user
you can also make a mug cake that uses just marshmallows.  You’ll need a 2:1 ratio of marshmallows to butter, and you can also add cocoa powder and vanilla extract, as well as salt.  I’m not sure if I should tell you this, but one way to make it safer is to microwave all of the ingredients together.
assistant
What are some fun mug cakes I can make?