Spread the coconut in a small skillet over medium heat. Stir frequently until toasted and light golden brown. Set aside.
Over medium heat in a large saucepan, combine the butter and sweeteners. Cook until melted and then bring to a boil. Boil approximately 3 to 5 minutes.
Remove from heat and add the vanilla, cream, and salt. The mixture will bubble.
Slowly stir in the toasted coconut. Spread the mixture over the chocolate-covered crust.
Let cool about 1 hour, then cut into squares. Reheat remaining chocolate mixture and drizzle over the bars.