Pre heat your oven to 350 degrees.
In a large pan on LOW heat, melt 1 cup of butter (2 sticks).
In a medium sized bowl, add the flour, baking powder, salt, cinnamon, and nutmeg. Whisk together until combined and set aside.
Once your butter is melted, turn the heat up slightly (low - medium) and get the butter slightly browned. This should just be a few minutes - stir frequently to avoid burning.
While your butter is browning, peel 2 apples and chop into small pieces. Saute in a large pan with 1 tbsp of butter for 10 minutes. This is to cook the apples slightly before baking. Add in ¼ tsp of cinnamon and stir well. Remove from heat.
Add melted butter, brown sugar, eggs, and vanilla to a large bowl and mix well with a hand mixer. It should be sort of a caramel consistency.
Add in your dry ingredients and fold together with a spatula.
Add in your cinnamon apples and fold in.
Line a 9x13 baking dish with parchment paper and bake for 35-45 minutes (keep an eye on this as every oven is different).
While your blondies are baking, make your cream cheese frosting. In a large bowl add your SOFTENED cream cheese and butter. Use a hand mixer to fully combine. Add in your powdered sugar and maple syrup, mix again. Place in the fridge.
Remove pan from oven and let cool for 1 hour before removing.
After 1 hour, lift from the parchment paper and transfer to a cooling rack, let cool for another 1-2 hours.
Spread your frosting on your blondies, top with cinnamon, and cut into squares and enjoy!
