Apple sour cream cake

I love apple cakes and this is one I hadn't made before. It's good as a cake and as a dessert.

125g butter
125g caster sugar
2 eggs
1 tspn vanilla extract
200g plain flour
11/2 tspn baking powder
1 tbspn cinnamon
2 cooking apples
3 tbspn sour creme
topping
1 tbspn butter
2 tbspn sugar
1/2 tspn cinnamon

Preheat oven 180C/350F/gas4

Grease and line a 23cm springform tin

Cream butter and sugar together till fluffy.
Beat in eggs and stir in vanilla essence, flour and baking powder, tbspn cinnamon and the sour cream.
Peel and chop one apple into dice and finely slice the other.
Add the diced apple to the mixture and spoon in the tin.
Arrange the apple slices on top.

                Melt the tbspn butter amd mix with the sugar and cinnamon. Brush this over the apple slices.

                Bake for about 40 mins till golden and cool on a wire rack.