Mix batter ingredients in a greased 9-1/2-inch deep dish pie plate. Set aside for 5 minutes. Combine streusel topping ingredients in small bowl mixing with fork until uniform. Mix cream cheese frosting with electric mixer until very smooth.
Top batter with streusel topping. Using fingers, poke topping thoroughly into batter.
Bake by placing in a COLD oven; set temperature to 350°F. Bake for 30 minutes or until done. Cool 10 minutes, then spread frosting over top.