Simple Choclate Cake

Finally i tried a small choclate cake surprise to my husband. Tastes good.
Ingredients
1 cup self raising flour
1 cup caster sugar
3 1/2 tbsp of cocoa powder
3 1/2 tbsp of butter
2 eggs
1/3 cup of milk

Method:
1. Preheat oven to 180 C
2. Sift Flour and cocoa powder into a bowl.
3. Place all other ingredients into the bowl and mix with an electric mixer for 3 minutes.
4. Pour mixture into a greased baking tin and bake for approximately 40 minutes.