Place the flour, caster sugar, butter, vanilla, eggs and milk in a large mixing bowl. Use an electric mixer or stand mixer and beat until ingredients are just combined. Fold half of the raspberries gently through the mix.
1.5 cups self-raising flour, 0.75 cup caster sugar, 125 g butter, 1 tsp vanilla extract, 2 eggs, 0.5 cup milk, 1 cup frozen or fresh raspberries