Preheat your oven to 350 degrees Fahrenheit.
Prepare the cake pans by greasing and flouring them.
In a large mixing bowl, combine all the dry cake ingredients.
Using an electric mixer, mix at medium speed for about 2 minutes.
Gradually add the wet ingredients and mix until smooth.
Pour the batter into the prepared 9 x 13-inch pan.
Bake for 30 to 35 minutes and perform a toothpick test.
Allow the cake to cool completely in the pan.
For the frosting, pour the milk into a deep bowl and add the Dream Whip.
Mix on low speed for about 30 seconds, then increase speed until peaks form.
Spread frosting generously over the cooled cake.
