Berry Cake - cooking recipe

Ingredients

1 cup plain flour
100 g butter, melted
1 egg
1/2 cup sugar
1 1/2 teaspoons baking powder
1 teaspoon vanilla extract
3 cups blueberries
2 cups sour cream
1/2 cup sugar
1 1/2 tablespoons custard powder
2 egg yolks
1 teaspoon vanilla extract

Preparation

Mix together all ingredients up to but not including Berries(fresh or frozen).
Pour into greased 23cm spring form tin.
Cover with Berries.
Beat topping ingredients & pour on top of Berries.
Bake for 50 - 60mins.
Serve with whipped cream & Berries.