Preheat the oven to 350°F. Line 2 baking sheets with a silicone mat or parchment paper. Set aside.
In bowl of stand mixer fitted with a paddle attachment, thoroughly mix cocoa powder, granulated sugar and brown sugar, butter, and veg. oil. Beat in the egg and vanilla. Scrape down the sides of the bowl so that everything is mixed in.
Add the flour, baking powder, and salt to the wet ingredients. Mix until just combined. Fold in the chocolate chips.
Scoop the cookie dough into 2 T. sized balls. Place the cookie dough balls on the baking sheet about 2 inches apart from one another.
Bake for 11-12 mins. Remove from oven and cool on baking sheet for 5-8 mins. Transfer to wire rack to cool completely. **