Combine strawberry cake mix, egg, and Cool Whip in a mixing bowl. Blend until smooth for about 2-3 minutes.

Chill the dough for 30 minutes, covered, in the refrigerator.

Preheat the oven to 350°F (175°C) and prepare a baking sheet with parchment paper.

Scoop 1 to 1½ inch portions of dough and place them on the prepared baking sheet, 2 inches apart.

Roll each dough ball in powdered sugar until lightly coated.

Bake in the preheated oven for about 10 minutes until slightly soft in the center.

Allow the cookies to cool on the baking sheet for 5 minutes before transferring to a wire rack.