Preheat the oven to 350. Combine the brown sugar, butter, and shortening until well combined and fluffy. Add the eggs and maple syrup and mix until just combined.
Add the flour, baking soda, salt, and cornstarch and mix until a dough forms.
Using a 2 inch cookie dough scoop, poke a hole in the dough and place a small piece of brie inside, closing the dough around it. Bake at 350 for 10-12 minutes, until the cookie has just set.
While the cookies are baking, make the frosting. Mix the butter in a stand mixer for 5 minutes, until fluffy. Slowly add the powdered sugar and mix for another 3 minutes. Add the vanilla and maple syrup and mix an additional 3 minutes. Once the cookies are cooled, frost them with the maple frosting and top with bacon bits!
