You pulled the brownies out of the oven and they look perfect. Now put the knife down. Cutting too soon is the number one reason homemade brownies look messy — and it has nothing to do with your recipe. I cut the same batch twice — once warm, once after four hours in the fridge — and the difference is exactly what you see in the photo above. Here’s the science behind why cooling matters, and the exact technique that gives you clean, bakery-style squares every single time.
