Preheat oven to 350° F and spray a 9x13 pan with non-stick spray.
In a large mixing bowl, add the cake mix, eggs, oil and water and blend well until blended well. (careful not to over mix)
1 box white cake mix, ½ cup vegetable oil, 3 eggs, 1 cup water
Pour batter into the prepared dish.
Bake for 30-34 minutes or until a toothpick inserted into the center comes out clean.
Remove from oven and allow the cake to cool completely.
After the cake has cooled, poke holes all over the entire the top of the cake with the handle of a wooden spoon or a straw.
In a medium mixing bowl, mix the strawberry jello powder mix with 1 cup of boiling water and stir until dissolved. Then stir in 1 cup cold water and mix well.
3.4 ounce box of Strawberry jello
In a separate mixing bowl, mix the berry blue jello powder mix with 1 cup of boiling water and stir until dissolved. Then stir in 1 cup cold water and mix well.
3.4 ounce box of Berry blue jello
Using a measuring up or the end of a straw dipped in jello mixture, drip the strawberry jello into every other hole on the cake. Then repeat with the blue jello in the other holes. (You can also drizzle some in between each whole on a diagonal like I did)
Cover the cake with plastic wrap and refrigerate for at least 3 hours to set. You can also refrigerate overnight if desired.