Step 1 - Preheat the oven to 170 C / Gas 3.
Step 2 - Line a cupcake tray with your choice of paper cupcake cases.
Step 3 - Put the butter and sugar into an electric mixer and whizz up until light and fluffy.
Step 4 - Pour in the vanilla essence and then add the eggs one at a time – mix to make a yellow batter.
Step 5 - Add the flour and mix into the wet batter until it is smooth, be careful not to over mix. Stop once in the middle of this and scrape the sides of your bowl down using a spatula.
Step 6 - Scoop roughly 2 tbsp of the mixture into each of your cupcake cases.
Step 7 - Place your tray into the oven on the middle shelf and bake for about 14 minutes. Keep an eye on them - they will be perfectly cooked when they bounce back to the touch and the top of the cupcakes look slightly sticky. If you want to, you can check if they are cooked through by inserting a tooth pick into the middle of the cupcakes, if it comes out clean – they are ready to be taken out of the oven!
Step 8 - Leave your cupcakes on a cooling rack for 30 minutes or until completely cool.