Cinnamon Cake

75 g butter
2 dl sugar
3 egg yolks
250 ml flour
1 tsp salt
1 tsp baking powder
125 ml milk
3 egg whites
Topping:
3 tbsp sugar
1 tbsp cinnamon
2 tbsp  butter
1 tbsp flour
1 Bramley apple, cored, peeled, chopped into small pieces or slices as you like.

Preheat the oven to 220C
Whisk butter & sugar, Add egg yolks one by one, whisking at same time.
Mix together flour, baking powder & salt. Add it to the butter mixture along with milk.
At last add the whisked egg whites.
Pour the mixture into the 24 cm baking tin.
Scatter over the apple pieces.
Chop together all ingredients for the topping, sprinkle over the cake.
Bake ca 30 min.