Preheat your oven to 350°F (175°C). Line a baking sheet with parchment paper.
In a mixing bowl, whisk together the flour, cocoa powder, baking powder, and salt. Set aside.
In another bowl, mix the granulated sugar and vegetable oil until combined using an electric mixer or whisk.
Add the egg, red food coloring, and vanilla extract to the sugar mixture. Blend until smooth and well incorporated.
Gradually add the dry ingredients to the wet mixture, stirring until just combined. Do not over-mix.
Once the dough is well mixed, chill it in the refrigerator for about 30 minutes for easier handling.
After chilling, use a cookie scoop or tablespoon to portion out the dough. Roll each portion into balls and then roll them in powdered sugar to coat.
Place the cookie balls on the prepared baking sheet about 2 inches apart.
Bake in the preheated oven for 10-12 minutes or until the edges are set but the centers remain soft.
Allow the cookies to cool on the baking sheet for 5 minutes before transferring them to a wire rack to cool completely.