Add your butter and sugar to a stand mixer and mix until pale and fluffy. (You can do this by hand or use an electric hand whisk)
Add the vanilla, milk, eggs and flour and mix until combined. Do not overmix as this will result in a heavy cupcake.
Spoon some of your cake mix into each of the wells until they are about two thirds full.
Bake for 8-12 minutes until a skewer inserted into one of the cakes comes out clean.
Slide out of the wells and leave to cool on a rack before icing.notes: If you are baking these cupcakes in an oven. Spoon the mixture into cases and bake at 325f/160c/140c fan/gas 3 for about 16 minutes. Do the skewer test with these too.I have given the time for one batch of cupcakes using the cupcake maker.
Whizz the butter in a stand mixer (you can also use a whisk or an electric hand whisk) until really soft.
While the butter is whizzing gradually add the icing suagr, orange juice and peel. Whizz until smooth.
Pipe onto your cupcakes preferably using a disposable piping bag (less washing up) and a large nozzle (gives a more professional finish).
Top with a wee chocolate decoration or any other decoration you prefer.
