Preheat your oven to 350°F (175°C). Prepare a large cookie sheet by lining it with parchment paper and set it aside.

In a large mixing bowl, combine the strawberry cake mix, Cool Whip, and egg until the mixture is thick and consistent. Be sure to eliminate any dry spots for the best results.

Use a large cookie scoop to create 12 even balls of dough. Place them onto the prepared baking sheet with some space in between.

Place the baking sheet in the oven and bake for 10-12 minutes, or until the tops turn a lovely golden brown.

After baking, let the cookies sit on the tray for about 5 minutes before transferring them to a wire rack to cool completely.

In a small bowl, whisk together the powdered sugar, heavy whipping cream, and vanilla extract until smooth. Once the cookies have cooled, spread the glaze evenly over each one.