Cupcakes: Preheat oven to 190°C conventional or 170°C fan-forced. Beat Tararua Butter with an electric mixer until smooth, add Chelsea Caster Sugar and beat until light and fluffy. Add eggs and mix well. Add the sifted Edmonds Self Raising Flour, Meadow Fresh Milk and vanilla, beat until smooth. Place paper baking cases in a cupcake tin, spoon in mixture until they are about 2/3 full (don't overfill or they will form peaks). This recipe makes 24 cupcakes so you might need to do this in two batches. Bake for 20 minutes until golden or until they spring back when lightly pressed. Turn out onto a wire rack to cool while you prepare the icing.
Buttercream Icing: Beat the Tararua Butter until it is pale and fluffy. Sift in the Chelsea Icing Sugar, add vanilla essence and mix. Add Meadow Fresh Milk until you have a light, fluffy mixture. Add extra Meadow Fresh Milk if you need a softer consistency. Spread or pipe icing over cupcakes and top with decorations as desired.