INGREDIENTS
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For the filling
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3/4 cup blueberries (fresh or thawed frozen)
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1 tablespoon lemon juice
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1 tablespoon sugar
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1 tablespoon flour
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1/4 teaspoon cinnamon
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Pinch salt
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1 store-bought freezer pie crust, thawed and unfolded
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Flour for rolling out the crust
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1 beaten egg
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Raw/turbinado sugar for sprinkling
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2-4 Mason jar lids