Pre-heat oven on gas mark 4. Put paper cases into a 12-hole cake tin.
Add the butter and sugar to a mixing bowl and then mix until incorporated. Then add the eggs and mix in.
Once the eggs are incorporated, add the flour and baking powder then fold in until incorporated.
Using an ice cream scoop, scoop the mixture into the cases and bake in the oven for 20 minutes.
Once the cakes are done, leave them to cool in the tin for a minute then transfer to a cooling rack until cooled completely.