Prepare Cinnamon Butter; chill.
Grease a 9-inch pie plate. In mixing bowl, combine brown sugar, flour, baking powder, salt and cinnamon.
Add eggs and vanilla; stir till well mixed. Add apples and nuts; stir till well combined. Spoon into pie plate.
Bake in a 350 degree F oven for 30 to 35 minutes or till browned and top feels firm. Serve warm with Cinnamon Butter on top. Makes 8 servings.