Preheat oven to 350 and prepare an 9X9 inch baking pan with parchment paper.
In a bowl mix together condensed milk, melted butter, and vanilla.
In a separate bowl, mix together coconut, and graham cracker crumbs.
Combine both mixtures together in one bowl and then fold into the prepared brownie pan. Using a spatula, press down to make sure the squares are evenly spread out right to the edges
Bake in the oven for 20 minutes
After 20 minutes, remove from the oven and sprinkle on the chopped Aero bar. Cover with a baking sheet for 5 minutes and then smear the chocolate across the top of the bars. Allow to fully cool and enjoy!!!