How to make cinnamon cake

Easy steps on how to make yummy cinnamon cake
180g soft butter
1 tsp vanilla extract
3/4 cup caster sugar
2 cups self-raising flour (or 2 tsp baking powder with plain flour )
2 eggs
1/2 cup milk
2 tsp ground cinnamon

Sugar topping
1 tbs caster sugar
1 tbs melted butter
1 tsp ground cinnamon