Cream the butter and sugar. Then add in eggs, mix well.
Sift in flour and baking powder, mix it until well combined. Add in milk, mix well.
Add in chopped walnut, mix well.
Put the batter into lined muffin tin, topped with more chopped walnuts.
Pop in preheated oven at 180C, bake for 15-18 minutes.
*This recipe can make 10 little cakes