1. Preheat oven to 350° F.
2. Spray an 8 x 8 baking dish or metal baking pan with nonstick cooking spray. Line with parchment paper for easy removal then set aside.
3. In a medium bowl, whisk together sugar, flour, salt, cocoa powder, and cornstarch. Set aside.
4. In a large bowl, whisk together eggs, oil, and water. Add the dry ingredients to the wet ingredients and stir until just combined. Transfer the batter to the prepared pan, spreading evenly into the pan.
5. Bake for 25-35 minutes until set and a toothpick inserted into the center comes out clean. They will continue to cook as they cool and you want them to be fudgy!
6. Allow to cool completely in the pan. Once completely cool, make the frosting.
7. Place the cream in a microwave-safe bowl and microwave for 90 seconds. Add the chocolate chips to the cream and let sit for 3 minutes, then stir the cream and chocolate chips together until smooth.
8. Pour the chocolate mixture over the brownies and add the sprinkles.
9. Let cool completely before removing, slicing, and enjoying!

Recipe Notes: These brownies can be made 1-2 days in advance and stored in an airtight container.