Wait for the brownies to completely cool to room temperature or put them in the fridge to cool. Place a large sharp knife (I use an 8 inch chef's knife) under hot water until the blade is hot. Dry off the blade carefully and then cut your brownies! It's important to clean the knife and repeat the process for each cut. Never u0022sawu0022 your brownies, cut in one long motion. A u003ca href=u0022https://amzn.to/3vxbsryu0022 rel=u0022nofollowu0022u003emini spatulau003c/au003e is also super helpful from removing each brownie from the pan cleanly.