Fruit-Filled White Cake

Directions

1. In a large bowl, cream butter and sugar. Add egg whites, two at a time, beating well after each addition. Beat in vanilla. Combine the flour, baking powder and salt; add to creamed mixture alternately with milk.
2. Pour into two greased and floured 9-in. round baking pans. Bake at 350° for 18-22 minutes or until a toothpick inserted in the center comes out clean. Cool for 10 minutes before removing from pans to wire racks.
3. In a bowl, beat topping mix and milk on high speed for 4 minutes or until thickened. Combine melted chips and jam; gradually beat into topping. Set aside 1 cup for filling. Cover and chill remaining mixture for 20 minutes or until it reaches spreading consistency.
4. Add pineapple and strawberries to reserved filling. Place one cake layer on a serving plate; spread with fruit mixture. Top with remaining cake layer. Frost top and sides of cake with chilled topping. Store in the refrigerator.