Preheat oven to 350°F. Spray a 9x13 pan with nonstick spray and set aside.
In a large bowl, whisk together the cocoa and melted butter. Stir in sugar until combined.
Stir in eggs, one at a time, mixing well after each. Stir in vanilla.
Fold in flour JUST until you no longer see flour streaks in the batter.
Gently fold in cream of coconut and hot fudge sauce.
Fold in chopped candy.
Spread batter in prepared pan and bake for about 20 minutes. Brownies will look cakey on top and feel very dense and a toothpick inserted in the center should come out with fudgy crumbs but no raw batter.
Let brownies cool for about 30 minutes, then prepare glaze.
In a medium-sized bowl, whisk together water and cream of coconut.
Whisk in powdered sugar until smooth. Spread over brownies.