Dutch Apple Pie with Oatmeal Streusel

Ingredients

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• 4 large apples - peeled, cored, and thinly sliced
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• 1 pinch ground cinnamon
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• 7 ounces unsalted butter, at room temperature
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• 1 cup white sugar
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• 3 teaspoons vanilla sugar
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• 1 large egg
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• 2 cups all-purpose flour
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• 3 ½ teaspoons baking powder
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Instructions

1. 1
   Combine apple slices and cinnamon in a saucepan and cook over low heat for 10 minutes. If necessary, add a tiny bit of water so apples don't burn. Remove from heat and set aside to cool.
2. 2
   Preheat the oven to 350 degrees F (175 degrees C). Grease a 10-inch springform pan with butter.
3. 3
   Combine butter, sugar, vanilla sugar, and egg in a large bowl; beat using an electric mixer until smooth and creamy. Mix flour and baking powder in a separate bowl. Add 2/3 of flour mixture, 1 tablespoon at a time, to butter mixture and beat on low speed. Add remaining flour mixture and mix in by hand to make a crumbly dough.
4. 4
   Transfer 1/2 the dough into the prepared springform pan and press down to create a bottom crust. Add apple slices, leaving a small space around the edges. Crumble remaining dough evenly on top.
5. 5
   Bake in the preheated oven until streusel and crust are lightly browned, about 50 minutes. Cool on a wire rack for 5 minutes. Run a table knife around the edges to loosen. Carefully transfer to a serving plate or cooling rack.