Chocolate Malt Cake

3 oz. unsweetened chocolate
1 2/3 cups flour
2/3 cup malted milk powder
1/2 tsp. baking powder
1/4 tsp. baking soda
1/2 tsp. salt
3 1/2 sticks butter, room temperature
1 1/3 cups sugar
3 eggs
2 1/2 tsp. vanilla
1 1/4 cups + 2 tbsp. milk
1/2 cup malted milk balls
1/4 cup unsweetened cocoa
1 1/4 cup powdered sugar 

Melt chocolate. Grease and flour 13x9 pan. Combine flour. Malted milk powder, baking powder, soda and salt. Beat 1 1/2 sticks butter with sugar. Beat in eggs, one at a time, 1 1/2 teasp. Vanilla and the chocolate. Add flour alternately with 1 1/4 cups milk. Pour into pan and bake at 350 F. Until done, about 35 minutes. Meanwhile, beat 2 sticks butter with 1 teasp. Vanilla. Beat in cocoa, confectioners sugar and 2 tbsp. milk. Frost cooled cake. Chop candy and sprinkle over top.