Butter Cake recipe

For those who like my butter cake, here's the recipe:
250g butter (softened), 250g fine sugar, 250g self raising flour, 5 eggs and 1 tsp vanilla essence.
1. Preheat oven to 180 degree C.
2. Beat butter and eggs till colour turns light and is creamy.
3. Add in vanilla essence and eggs - one at a time and beat thoroughly.
4. Add in flour a little a time, stir to mix well.
5. Pour in baking pan and bake till golden brown and when toothpick is poked into the batter, it comes out clean.
6. Enjoy!!

Let me know if you tried it and your opinion of it :)