Step 1: Ingredients

1/4 cup flour
2 tablespoons sugar
1/2 teaspoon baking powder
Pinch of salt
1/4 cup milk
1/2 teaspoon vanilla
1 1/2 tablespoons oil
Sprinkles

Step 2:

Mix flour, salt, sugar, and baking powder in a mug.

Step 3:

Make a well in your mixture.

Step 4:

Add vanilla, milk, and oil.

Step 5:

Add sprinkles (the more the better I think (: )

Step 6:

Microwave at about 70% power for about 90 seconds. Keep an eye on it as microwaves are different.

Step 7:

Enjoy your cake! You can top it with frosting (like me) or ice cream if you want.
----
Suggestions/tips:
Use a little bit of almond extract (I do this almost every time)
You can use any kind of milk for this
Don't use nonperials as they tend to bleed (I recommend jimmies!)