Preheat the Oven. Preheat your oven to 350°F and line a square baking pan with parchment paper, leaving an overhang for easy removal.
Mix Dry Ingredients. In a mixing bowl, whisk together the flour, cocoa powder, sugar, baking powder, and salt until well combined.
Combine Wet Ingredients. In a separate bowl, whisk together the vegetable oil, non-dairy milk, and vanilla extract until smooth and well incorporated.
Combine Wet and Dry Ingredients. Pour the wet ingredients into the bowl of dry ingredients and stir until just combined. Be careful not to overmix.
Add Chocolate Chips. Gently fold in the chocolate chips until evenly distributed throughout the batter.
Bake. Transfer the brownie batter to the prepared baking pan, spreading it out evenly. Bake in the preheated oven for 25-30 minutes, or until the edges are set and a toothpick inserted into the center comes out with a few moist crumbs attached.
Cool and Serve. Allow the brownies to cool completely in the pan before slicing them into squares. Serve and enjoy!