This Blueberry Custard Pie, also called Mustikkapiirakka, from Finland is the perfect easy spring/summer dessert! It is flavored with blueberries and lemons and has a delicious sugar cookie crust.
Combine the crust ingredients. Using a spatula, spread the pie crust over the bottom of the pan and up the sides as well! Make sure the pie crust goes up the side of the pie pan.
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Make the filling: combine all of the filling ingredients together except the blueberries. Then, use a spatula to mix ½ cup of blueberries into the filling.
Combine and bake: Sprinkle the remaining one cup of blueberries over the crust, then pour in the filling mixture.
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If you are using blueberries to make this recipe, try finding wild blueberries as they match the size/taste of bilberries better than the store bought kind.
Keep in mind that the custard will thicken a bit as it cools. It can still be slightly jiggly when you take it out of the oven as it will finish cooking as it rests/goes in the fridge