Bake a white cake in a 9 x 13 inch dish. Let cool for 5-10 minutes.
Take the end of a wooden spoon or a straw and poke holes all over the cake (the smaller, the better it will be)
Boil a cup of water and mix the strawberry jello in it, wait 2 minutes then pour it all over the cake so it goes into the holes.
Cover the cake then let chill in the fridge for a a couple hours.
Top with cool whip and sliced strawberries!