Preheat oven to 350°F. Spray a 9×13 baking pan with baker’s spray and line with parchment paper.

Add the diced apples, granulated sugar, and cinnamon to a medium skillet over medium heat. Stir to combine. Cook for 5-7 minutes until softened.

In a small bowl, stir together the flour, baking powder, cinnamon, and salt. Set aside.

In a large mixing bowl, add the brown sugar, melted butter, vanilla extract, and maple extract. Beat with an electric mixer until combined.

Add the eggs and beat until smooth and fluffy.

Gently fold the flour mixture into the wet ingredients until no lumps remain.

Remove cooled apples using a slotted spoon and fold into brownie batter.

Spread the mixture into the prepared pan.

Bake for 25-30 minutes or until a toothpick comes out clean. Let cool completely.

In a saucepan, heat the butter, maple syrup, maple extract, cinnamon, and salt until combined.

Add the sifted powdered sugar and whisk until smooth.

Pour the glaze over the cooled brownies and spread evenly.