In a medium bowl whisk together the all-purpose flour, baking powder, and kosher salt.
1 cup All-purpose flour, 1 tsp Baking powder, 1/2 tsp Kosher salt
In a large bowl whisk the cocoa powder, granulated sugar, and vegetable oil. Beat in the eggs one at a time until fully incorporated. Add the vanilla and mix again.
1/2 cup Cocoa powder, 1 cup Granulated sugar, 1/4 cup Vegetable oil, 2 large Eggs, 1 1/2 tsp Pure vanilla extract
Stir the flour mixture into the wet ingredients just until a dough forms and you no longer see dry flour. Cover and refrigerate for a minimum of 4 hours up to overnight.
Preheat the oven to 350 degrees F. Line baking sheets with parchment paper.
Place the granulated sugar and powdered sugar in two separate bowls. Roll 1 tablespoon of cookie dough into balls. Roll the balls in the granulated sugar and then roll them heavily in the powdered sugar. Place the dough balls on the prepared baking trays about 2 inches apart.
1/4 cup Granulated sugar, 1/2 cup Powdered sugar
Bake for 10-12 minutes. Let the cookies cool on the baking sheet for about 5 minutes then transfer them to a wire cooling rack to cool completely.