Preheat your oven to 350°F (175°C) to ensure even baking.
Line your 9x9 baking pan with parchment paper, leaving some overhang for easy removal.
In a large mixing bowl, whisk together the granulated sugar, all-purpose flour, cocoa powder, powdered sugar, and sea salt until smooth.
In a separate bowl, whisk together the eggs, canola oil, water, and vanilla extract until well combined.
Pour the wet ingredients into the dry ingredients and stir gently until just combined.
Fold in the dark chocolate chips to the batter for extra gooeyness.
Pour the batter into the prepared pan and spread evenly. Bake for 20-25 minutes, or until a toothpick comes out with a few moist crumbs.
Let the brownies cool in the pan for 10 minutes, then lift out using the parchment paper and transfer to a cooling rack. Allow to cool completely before cutting.