In a small bowl, combine all-purpose flour, cocoa powder, baking powder and salt.
In the bowl of your stand mixer with the paddle attachment, beat together vegetable oil, white sugar and brown sugar until smooth. Add vanilla extract, eggs and beat until smooth.
Add flour mixture to the wet ingredients and beat until fully combined. Dough will be very sticky. Cover bowl with plastic wrap and place in the fridge for at least 3 hours up to 24 hours to chill.
Preheat oven to 350 degrees.
Add powdered sugar to a small bowl.
Line a baking sheet with parchment paper. Roll about 1-½ tablespoons of cookie dough into a ball. Then generously roll into powdered sugar and transfer to the baking sheet. Repeat with remaining dough.
Bake cookies for 11-12 minutes. Transfer cookies to a cooling rack to let cool for a few minutes prior to eating. Enjoy!
Notes
Store completely cooled cookies in an airtight container on the counter for up to a week.
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