Frosted Apple Cake

2 1/2 C all-purpose flour
2 C sugar
1 tsp each baking powder, baking soda, ground cinnamon and salt
1 1/2 C applesauce
3/4 C vegetable oil
2 eggs
1 C chopped walnuts, divided
Frosting:
1/2 C butter or margarine
4 1/2 C confectioners' sugar
6 Tbsp apple juice, divided

Preheat oven to 350. Grease and flour 9x13" baking pan. Sift dry ingredients into a large mixing bowl. Add applesauce, oil and eggs. Beat at low speed until moistened. Beat batter at high speed 2 minute. Fold in 1/2 C walnuts. Pour into prepared pan. Bake 30 minutes or until toothpick inserted in center comes out clean. Cool in pan. For frosting, heat butter in saucepan, stirring continually, over medium heat until lightly browned. Beat melted butter, confectioners sugar and 4 Tbsp apple juice in a bowl. Add remaining apple juice to bowl to make frosting "spreadable"; beat until creamy. Stir in 1/4 C nuts. Spread over cake. Sprinkle with remaining nuts.