- Pre-heat oven to 175C 
- Sift flour, baking powder, baking soda and salt into a bowl. 
- Add sugar and combine. 
- Add butter and combine with a hand mixer or a whisk to create a fine crumb. 
- In a separate bowl, whisk together the egg, yogurt and oil.  
- Add the egg mixture to the dry ingredients and mix until just combined. 
- Add the vanilla to the milk and gradually add the milk into the bowl while whisking on low speed. 
- Beat until you have a smooth mixture; around 2 minutes. 
- Line a cupcake tray and fill* till about 3/4ths of the way up. 
- Bake at 175C for 18-20 minutes or until it passes the toothpick test! 
- Allow the cupcakes to cool in the tray for 10 minutes and then transfer onto a wire rack. 
- Decorate as you please or enjoy them as is!