Ozark Pie

1/2 cup of all purpose flour
2 teaspoons of baking powder
1/2 teaspoon of salt
2 eggs
1 cup of brown sugar, firmly packed
1 teaspoon of vanilla
1 cup of chopped walnuts
1 cup of finely chopped apples
One 9 inch unbaked pie shell
Whipped cream or ice cream for garnish
1/2 cup of broken nuts