Preheat the oven to 350°F. Spray a 9x13-inch baking dish with cooking spray and set aside.
Prepare 15.25 ounce box white cake mix according to the package instructions, using egg whites, water and vegetable oil as called for on the box.Pour the batter into the prepared baking dish and bake on the middle oven rack according to the package instructions, typically 28-32 minutes, or until a toothpick inserted into the center comes out clean.
Allow the cake to cool for 10-15 minutes. Using the end of a wooden spoon, poke holes into the cake about 1 inch apart. If you don’t have a wooden spoon, you could use a similar size object (a large straw would work here.)
In a medium bowl, whisk together contents of 3 ounce box cherry Jell-O and 1 cup boiling water until the gelatin is completely dissolved. Slowly whisk in 1/2 cup cold water.
Pour the gelatin mixture evenly over the cake, ensuring it seeps into the holes. Cover the cake with plastic wrap and refrigerate for at least 4 hours (or until fully chilled.)
Once cake is cooled, you can make the frosting. Beat 8 ounce block cream cheese, softened to room temperature and 1 cup powdered sugar in a large bowl until smooth (this is easiest with an electric hand mixer). Gradually add 1 1/2 cups heavy cream and beat until the mixture is light and fluffy.
Spread the frosting evenly over the chilled cake. Then, evenly spoon contents of 21 ounce can cherry pie filling over the frosting, spreading it out to cover the top.
Slice, serve and enjoy! Keep refrigerated.
Video
Notes
Please refer to my FAQ’s (Frequently Asked Questions) and ingredient list above for other substitutions or for the answers to the most common questions.
This makes between 12-16 servings depending on how you cut the cake.