I used my Kenwood Food Mixer, but it is possible too melt the butter in a Saucepan on the hob stove and then transfer the melted butter too a large Mixing Bowl and then add the Caster Sugar too the melted butter and then mix with a Wooden Spoon and then add beaten eggs and then in a Flour Sieve - sieve the Self-raising Flour and Baking Powder into the wet ingredients - need too mix well too combine

So what I did was put all the ingredients into my Kenwood Food Mixing Bowl and then attached it too my Kenwood Food Mixing Machine and then added the other Kenwood Attachments and then I combined the mix on full power

Preheat the oven to Gas Mark 6.
Place silicon Cupcake holders in the cavities of the Cupcake Baking Tray and then place a heaped Dessert Spoon of raw cake batter into each One and then bake in the oven until they are done. Usually takes 25 minutes. The aim is too make 20 plain Cupcake Sponges

Once they are all cooked - allow too cool. Will need too hollow out 12 holes from 12 plain Cupcake Sponges that are still in their silicone Cupcake holders. Their is a special device for removing plugs of Sponge Cake, but am sure it is possible too do it carefully by hand with the use of a small sharp Knife. Add a small teaspoon of Strawberry Jam too each hole and then add top's of plugs of Sponge Cake too go on top

Stir well - the Shop bought tub of Betty Crocker Vanilla Buttercream Frosting or thick Icing and then top each 12 Cupcakes and then form Sponge Cake Butterfly wings over the tops of the Buttercream Frosting