Heat oven to 350 degrees. Grease and flour 8 x 8 x 2-inch square pan or 9-inch round pan. In a large bowl, beat all ingredients (except coconut topping) on low speed for 30 seconds, scraping bowl constantly. Beat on medium speed for 4 minutes, scraping bowl occasionally. Pour into prepared pan. Bake 30–35 minutes or until toothpick inserted in center comes out clean; cool slightly. Make coconut topping by stirring together all ingredients; spread over cake. Set oven control to broil and broil cake with top positioned 3 inches from heat for about 3 minutes or until topping is golden brown.