In a large mixing bowl, combine the white cake mix, eggs, and vegetable oil. Mix until a thick, smooth dough forms.

Divide the dough evenly into two bowls.

Add red gel food coloring to one bowl and green gel food coloring to the other. Mix until the colors are vibrant and evenly distributed.

Cover both bowls with plastic wrap and refrigerate for 30 minutes to firm the dough.

Preheat the oven to 375°F (190°C). Line a baking sheet with parchment paper or a silicone baking mat.

Scoop about 1 tablespoon of dough and roll it into a ball.

Roll each dough ball generously in powdered sugar until fully coated.

Place dough balls about 2 inches apart on the prepared baking sheet.

Bake for 9–11 minutes, until the cookies are crackled on top and set around the edges.

Let cookies rest on the baking sheet for 2–3 minutes, then transfer to a wire rack to cool completely.