
Line with Overhanging Parchment: Always leave 2 inches of parchment paper hanging over the edges of your pan. This creates a built-in handle, allowing you to lift the cooled brownie block out seamlessly for slicing. Never Use Thin Yogurt: Stick exclusively to thick, strained Greek yogurt. Regular yogurt contains too much water, which will thin out the brownie batter and turn your dessert into a soggy, undercooked mess. The 30-Minute Chill Trick: Do not slice these while warm! Let them cool down completely and chill in the fridge for 30 minutes. This allows the structural crumb to set up for perfect, clean bakery-style squares. Fold, Don't Whisk the Flour: Put away your whisk once the flour goes into the bowl. Switch to a spatula and fold gently just until the white dust vanishes to keep the brownies from becoming rubbery. Mini Chips are Best: Stick to mini chocolate chips rather than standard ones. Mini chips distribute much better throughout this thick yogurt batter without sinking to the bottom of the baking pan and burning.