350g softened unsalted butter
350g caster sugar
6 eggs
250ml milk
350g self-raising flour
2 tsp natural vanilla extract

Preheat oven to 180 degrees celsius . Line a 24 hole muffin tin with paper paper patty cases. Beat softened butter caster sugar in mixing bowl until pale and creamy. Add eggs, milk and vanilla extract. Stir to combine, then fold in sifted flour. Spoon into patty cases and bake for 15-20 minutes, or until golden and firm. Transfer to wire rack to cool.