Mustikkapiirakka (Finnish Blueberry Pie)
Mix the butter base
- butter150 g
- white sugar180 g
- egg2
- vanilla extract2 tsp
- baking powder1½ tsp
Heat the oven to 200°C and line the base of a 24 cm square tin with baking paper. Whisk the melted butter with 100 g of the sugar until glossy, then beat in one egg and 1 tsp of the vanilla extract.
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