01 -
Preheat the oven to 350°F. Lightly grease and flour an 8×8-inch (20x20 cm) baking pan to prevent sticking.
02 -
In a medium bowl, whisk together all-purpose flour, baking powder, salt, ground cinnamon, and ground nutmeg until evenly blended.
03 -
In a separate large bowl, mix the melted unsalted butter with brown sugar until fully combined and smooth.
04 -
Add eggs and vanilla extract to the wet mixture and beat until thoroughly integrated.
05 -
Gradually stir the dry ingredients into the wet mixture, mixing just until no dry spots remain; do not overmix.
06 -
Gently fold the chopped apples into the batter using a spatula until evenly distributed.
07 -
Pour the batter into the prepared pan and spread evenly. Bake for 30 to 35 minutes, or until a toothpick inserted into the center emerges clean.
08 -
Allow the baked brownies to cool completely in the pan on a wire rack before glazing.
09 -
In a small bowl, whisk powdered sugar, pure maple syrup, and enough milk to form a smooth, pourable glaze.
10 -
Drizzle glaze evenly over cooled brownies. Once set, slice into squares and serve.