Method
Preparation
Preheat your oven to 350°F (175°C).
In a bowl, whisk together the flour, cocoa powder, baking powder, and salt.
In another bowl, mix the sugar and vegetable oil until combined. Add the eggs, vanilla extract, and red food coloring, and mix until smooth.
Gradually add the dry ingredients to the wet ingredients, mixing until just combined.
Chill the dough in the refrigerator for at least 30 minutes.
Baking
Scoop tablespoon-sized balls of dough and roll them in powdered sugar.
Place on a baking sheet lined with parchment paper about 2 inches apart.
Bake for 10-12 minutes, until the edges are set and the centers look slightly underbaked.
Allow cookies to cool on the baking sheet for a few minutes before transferring them to a wire rack to cool completely.
Notes
For best results, chill the dough well to maintain the shape. Do not overbake; cookies should be soft in the center.