Apple Sour Cream Pie - Kentucky Living

Ingredients

• Pastry for a 2-crust pie
• 1 egg
• 2⁄3 C sour cream
• 1⁄2 C sugar
• 3 Tbsp all-purpose flour
• 1 tsp vanilla
• 1⁄4 tsp salt
• 5 to 6 C peeled, sliced cooking apples
• 2 Tbsp brown sugar
• 1⁄2 tsp cinnamon
• 1 C chopped walnuts, optional
• 2 Tbsp milk