Hazelnut and white chocolate cake

This is a very simple but effective cake. It can be made with white chocolate or if you want a richer taste, with dark chocolate. The chocolate metls in the middle of the cake, so when you cut it, it's like a surprise. A sweet one! I dedicate this cake to my friend Frank, who celebrates his birthday today! Happy birthday Frank!

Ingredients: 200gr flour, 175gr sugar, 175gr butter, 1 Tbsp baking powder, 1 egg, 200ml milk, 100gr white chocolate, 2 tsp cinnamon, 50gr hazelnuts

Beat all ingredients together except chocolate and hazelnuts. You can use an electric beater or a manual wisk. Beat well until no lumps are formed. Pour half of the mixture into a greased cake tin. Break the white chocolate into pieces and put them on top of the mixture. Pour the other half of it and spread well with a spatula. Sprinkle with roughly chopped nuts. Bake for 1 hour or until well cooked inside and brown on the outside in a preheated oven at 180 C (Gas 4, 350 F). If the top starts to get too dark cover it with foil and continue baking. You can also use a thootpick to make sure it's cooked inside before removing it from the oven. Once is ready, switch the oven off and let it cool inside the oven with it's door open.