In a large mixing bowl, combine the strawberry cake mix, melted butter, and room temperature egg. Stir until smooth, about 2-3 minutes.

Add the softened cream cheese and blend until fully incorporated, about another 2-3 minutes.

Cover the bowl and refrigerate the dough for at least 1 hour.

Preheat your oven to 350°F (175°C) and line baking sheets with parchment paper.

Scoop tablespoon-sized portions and roll them into balls. Arrange on prepared baking sheets, leaving space between each.

If desired, roll cookie balls in powdered sugar before placing them on the sheets.

Bake for 8-10 minutes, until edges are set and centers are soft.

Let cookies cool for 1-2 minutes, then gently press a chocolate kiss into each cookie center.

Transfer cookies to a wire rack to cool completely.