INGREDIENTS
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Crust
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1 1/3 cup (195 g) all purpose flour
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1 tbsp powdered sugar
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1/4 tsp salt
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100 g (a scant stick) cold butter in cubes
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3-4 tbsp ice water
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Filling
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500 g fresh blackberries
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1/3 cup granulated sugar
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1 1/2 tbsp cornstarch
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1/2 tsp vanilla powder
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1 egg
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1 tbsp milk
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1 tbsp granulated sugar