Raspberry Sour Cream Pie

Ingredients

• 2 (9 inch) unbaked pie crusts
• 2 eggs
• 1 ⅓ cups sour cream
• 1 teaspoon vanilla extract
• 1 cup white sugar
• 1 pinch salt
• ⅓ cup all-purpose flour
• 3 cups raspberries
• ½ cup brown sugar
• ½ cup all-purpose flour
• ½ cup chopped walnuts
• ¼ cup butter, chilled