Blackberry Apple Pie
["5 c. thinly sliced and peeled apples", "1 pt. fresh blackberries", "1 Tbsp. lemon juice", "3/4 c. sugar", "2 Tbsp. cornstarch", "2 Tbsp. butter", "1 egg, lightly beaten", "1 Tbsp. milk", "sugar for sprinkling"]
["Roll out crust.", "Mix together carefully the apples, blackberries, sugar and cornstarch.", "Sprinkle with lemon juice. Add to pie shell.", "Dot with butter.", "Add top shell; brush with egg and milk.", "Bake at 375\u00b0 for 50 minutes.", "While hot, sprinkle with sugar."]
["apples", "fresh blackberries", "lemon juice", "sugar", "cornstarch", "butter", "egg", "milk", "sugar"]