step 1
First add the flour into a mixing bowl. Next add the coco powder and sugar into the mixing bowl, and mix until the dry ingredients have combined.
step 2
Now, add the egg and mix until combined. Next add the vegetable oil and mix. Now the milk and the vanilla. And mix until gloppy.
step 3
After you have finished mixing add the chocolate chips and mix. Next get your 3 small mugs and pour the batter straight into the mugs about half way up, because this is going to rise.
step 4
And Now put the mugs into the microwave for 1 1/2 minutes maybe 2 depends on your microwave.
step 5
After you have taken your mugs out of the microwave, let the cool for 3 minutes. After it has cooled sift the icing sugar into a bowl and add the butter into the bowl and mix until creamy. Then add the milk and vanilla and mix.
step 6
Now that your Buttercream is ready grab a piping bag and pour your mixture into the piping bag and pip your icing onto your cake and enjoy your less than 5 minutes cake!