For Sue in the 3/19/09 newsletter, this may be the recipe for which you are searching. I have not made this recipe. It comes from an old cookbook that a friend gave me and I have copied it as the recipe appears. It did not list specific baking times. I hope this helps you. There are many Chocolate Miracle Whip cake recipes and you might be able to leave out the cocoa in these recipes to make the white cake you desire.
Robbie In

Miracle Whip Cake
2 c. all-purpose flour
1 c. sugar
1 c. water
1 1/2 tsp. baking powder
1 1/2 tsp. soda
1 c. Miracle Whip
1 tsp. vanilla
3 tbsp. cocoa for dark cake (optional)

Mix ingredients just enough to blend. Oven at 350 degrees. Bake in 2 greased and floured layer pans until done. This cake is delicious and moist.
Robbie In

http://www.nancyskitchen.com