Mustikkapiirakka – Finnish blueberry pie

Ingredients

• 100 g softened butter
• 75 g sugar for base
• 1 egg for base
• 200 g plain flour
• 1 tsp baking powder
• 300 g blueberries
• 200 g sour cream
• 1 egg for filling
• 60 g sugar for filling
• 1 tsp vanilla sugar

Method

1. 1Heat oven to 180°C. Cream butter and sugar, add egg and mix in flour and baking powder.
2. 2Press dough into a greased 24 cm pie tin and up its sides. Add berries.
3. 3Whisk sour cream, egg, sugar and vanilla sugar and pour over berries.
4. 4Bake for 35–40 minutes until filling is set and edges golden. Cool for at least 15 minutes.