Apple Raisin Snack Bars

Bars:
1 pkg (2 layer size) spice cake mix
3/4 cup Miracle Whip
2 eggs
1/2 cup each chopped apple and raisins

Frosting:
3-1/2 cups powdered sugar
1/2 cup (1 stick) butter or margarine, softened
2 Tbsp. milk
1 tsp. vanilla

Bars:
Blend cake mix, dressing and eggs with electric mixer on medium speed until well blended. Stir in apple and raisins. Spread into greased 13x9 inch baking pan.

Bake at 350 for 25 to 30 minutes or until toothpick inserted in center comes out clean. Cool completely in pan on wire rack.

Frosting:
Blend all ingredients with electric mixer on low speed until moistened. Beat on high speed until light and fluffy. Spread over bars.