Baking a batch of brownies seems simple enough that is, until they come out too cakey, underbaked or oily. Everybody has their own preferences, whether its crispy edges or a center piece, with or without walnuts, sponge-like versus fudgy. Brooklyn Nine-Nine star Chelsea Peretti has her own thoughts about brownies, and she recently shared on Twitter about her disdain for mushy brownies and crowdsourced tips.

Pastry chefs have their own definitions of what entails a perfect brownie, and we spoke to three of them to explain how they achieve their ideal brownie.

Crispy Edges

Emily Griffin, co-founder of the company Bakers Edge , invented the Edge Brownie Pan in 2006 with her husband, Matt. The pan guarantees two chewy edges and a soft center to every brownie serving, which is her preferred way to eat brownies. When I think about a brownie, I dont want it to be light and fluffy, because it is too close to a cake, and I feel like the texture of a brownie helps define what it is, she told HuffPost.