Today's Kitchen; How to make simple sponge cake

Honestly I'm not really a big fan of cakes and that's the last thing I'd like to buy with my money. But just this Tuesday I attended a birthday party and the birthday cake was wow! Very creamy, spongy and tasteful, mehn I loved it!
So today I'd like to share the recipe on how to make sponge cakes, its easy, very easy!

Ingredients
4oz/100g self-raising flour
4oz/100g sugar (normal should be fine)
4oz/100g butter
2 eggs
or
4oz/100g plain flour
1 teaspoon baking powder
4oz/100g sugar (normal should be fine)
4oz/100g butter
2 eggs

Directions
Whisk the butter and sugar.

add the eggs then flour.

mix to get a creamy batter.

put it in a cake tin with baking paper.

put it in the oven for 18-20 minutes on 200'c or more.

That's it, enjoy with soft drink or tea!