Creamy Dutch Apple Dessert
["3 Tbsp. butter, melted", "1 c. graham cracker crumbs", "1 (14 oz.) can sweetened condensed milk", "1/4 c. lemon juice", "1 (8 oz.) carton sour cream", "1 (21 oz.) can apple pie filling", "1/4 c. chopped walnuts", "1/2 tsp. ground cinnamon"]
["Combine butter and cracker crumbs in an 8-inch square baking dish.", "Firmly press mixture in bottom of dish and set aside."]
["butter", "graham cracker crumbs", "condensed milk", "lemon juice", "sour cream", "apple pie filling", "walnuts", "ground cinnamon"]