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Instructions
Preheat the oven to 400 degrees F (200 degrees C).
Combine flour, 1/2 cup brown sugar, and Cheddar cheese in a bowl; cut in butter until mixture resembles coarse crumbs. Set crumble topping aside.
Toss pears and lemon juice together in a large bowl. Combine 1/2 cup brown sugar, cornstarch, and cinnamon in a separate bowl; stir into pears and toss to coat. Transfer pear filling to pie crust; sprinkle with crumble topping.
Bake in the preheated oven until the top is golden brown, about 45 minutes.