Many people prefer the crispy edges of brownies. They will fight over the edge pieces and the size of the brownie cut. Bake your brownies in a muffin tin and everyone will get a perfect individual brownie.
Photo by betsyweber
The concept here is like a waffle iron: more of the batter crisps up from the heat. Not only do you get a crispy piece with edges all around, they're also portion-controlled. The treats will cook much faster, though, so you'll need to experiment with the oven time and temperature.