Blueberry Pie

Ingredients
Making the Pie Crust
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Icing Sugar 100.0 g
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Margarine 200.0 g
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All-Purpose Flour 300.0 g
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Pfanni Potato Flour 25.0 g
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Eggs 40.0 g
Making the Filling
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Margarine 110.0 g
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Soft sugar 30.0 g
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White Chocolate, melted 60.0 g
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Egg Yolk 40.0 g
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Baking Soda 0.25 tsp
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Starch, Corn (Maizena) 20.0 g
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Milk 100.0 ml
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Sugar 30.0 g
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Egg White 60.0 g
Making the Streusel
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Icing Sugar 50.0 g
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Cake Margarine 100.0 g
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Wheat Flour 150.0 g
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Water 1.0 tbsp