Step 1 of 9
In a medium bowl, mix the cocoa, granulated sugar, and vegetable oil.
Step 2 of 9
Beat in eggs one at a time and stir in vanilla.
Step 3 of 9
In a separate large bowl, combine the flour, baking powder, and salt; then stir into the cocoa mixture.
Step 4 of 9
Cover the dough and let cool in fridge for at least 4 hours. (This step is incredibly important to get the crinkles in the cookies.)
Step 5 of 9
Preheat oven to 350°F.
Step 6 of 9
Line baking sheet with parchment paper and roll dough into 1-inch balls.
Step 7 of 9
Coat each ball with confectioner's sugar before placing on the baking sheet.
Step 8 of 9
Bake for 10 to 12 minutes.
Step 9 of 9
Transfer cookies to wire rack to cool and enjoy!