Butter Cake

A friend of mine give me a butter cake recipe but I've modify a little.

Ingredients:
250g butter, softened

250g plain flour (I used 150g AP flour + 100g cake flour)

1 tbsp baking powder

200g castor/fine sugar

4 eggs

1 tsp vanilla essence

3/4 cup evapourate milk

Directions:

1. Cream butter & sugar together till light & fluffy.
2. Add the eggs, one at a time, beating well after each addition. Add the vanilla essence.
3. Sift dry ingredients and add alternatively with milk, mixing well.
4. Grease and line 2 layer cake tins or a large square tin. Place the cake batter into the tins. Tap the pan lightly to break large air bubbles.
5. Bake at 160ºC for 55-60 minutes. Turn onto a wire rack and allow to cool completely.