Bird'S Nest Pie
["4 to 5 medium apples, peeled and sliced", "1/2 tsp. baking soda", "2 c. all-purpose flour", "1/2 tsp. cream of tartar", "1 c. sugar", "1 egg", "1 c. sour milk *"]
["*Place 1 tablespoon of white vinegar in measuring cup.", "Add enough milk to equal 1 cup.", "Let stand for 5 minutes."]
["apples", "baking soda", "flour", "cream of tartar", "sugar", "egg", "sour milk"]