In a bowl mix together the graham cracker crumbs, sugar, and butter. Press down into the crockpot to form a crust.
Spoon the can of key lime pie creme filling over the crust. Top with toasted coconut.
Cover and cook on low for 3 hours or high for 1 1/2 hours.
Remove lid and using pot holders, carefully remove the crock from the crockpot and allow it to cool to room temperature.
Once cool place crock in the fridge for a couple of hours.
When ready to serve lift the bars out of the crockpot by pulling up on the parchment paper. Slice and serve. Top with a lime slice if desiredGluten free
Use gluten free graham cracker crumbsDairy Free
Substitute vegetable oil for the butter and make sure the key lime filling is dairy free.