1Preheat oven to 350 F.Coat 9"x5" loaf pan with cooking spray. In bowl,combine flour, Pumpkin pie spice,soda,salt and baking powder;set aside. In small separate bowl,combine apple and raisins;toss with 2 Tbsp.flour mixture,set aside.
2On medium speed,beat butter and brown sugar until well blended.Medium low speed beat in eggs and potatoes until well-blended. (mixture will look curdled)
3On low,alternately beat in flour mixture with 1/3
cup juice until blended. Stir in apple mixture.
Pour into prepared pan.Bake 1hour and 20 minutes
or until toothpick inserted in the center comes
4Cool on rack 10 minutes.Transfer from pan to wire rack;cool. Mix confectioners sugar and enough of the remaing juice until smooth and spreadable.
Spread over loaf.If desired,garnish with sliced apples.