The secret to chewy brownies lies in the recipe's ingredients and baking technique. Here are some tips to achieve that desired chewy texture: - Use a combination of melted chocolate and cocoa powder in the recipe. This helps to create a denser, fudgier texture. - Use brown sugar instead of granulated sugar. Brown sugar contains more moisture than white sugar, which helps to keep the brownies moist and chewy. - Use melted butter instead of softened butter. Melted butter adds more moisture to the brownies, resulting in a chewier texture. Don't overmix the batter. Mix the ingredients until just combined, as overmixing can lead to a cakey texture. - Bake the brownies at a lower temperature for a longer time. This will help to create a crispy crust on the outside and a chewy texture on the inside. Once the brownies are baked, allow them to cool completely in the pan before cutting them. This will help the brownies set and develop their chewy texture.