Step 1

Preheat oven to 350°F (or at temperature called for on cake box instructions) and grease a 9x13-inch baking dish with butter or non-stick spray. Set aside.

Step 2

In a large bowl, mix together cake mix, eggs, oil, 1 cup water, and vanilla extract until smooth. Pour into prepared baking dish and bake for 28-32 minutes, or until toothpick inserted in center comes out clean.

Step 3

Remove from oven and let cool 15 minutes. Then, pierce holes all over cake with the end of a wooden spoon or a large serving fork.

Step 4

Meanwhile, make the filling:

Step 5

Add jello mix to a large bowl and whisk in boiling water until jello is fully dissolved. Stir in cold water.

Step 6

Pour jello over top of cake so it fills all the holes you've made, then cover and refrigerate cake for at least 2 hours.

Step 7

Once chilled, make topping:

Step 8

Place pudding mix in a large bowl and whisk in milk until thick. Gently fold in whipped topping until fully incorporated.

Step 9

Spread over chilled cake and top with sliced strawberries. Slice, serve, and enjoy!