Preheat an outdoor grill for medium-high heat and lightly oil it.
Whisk brown sugar, cinnamon & butter together in a bowl.
Pour sugar mixture into a large resalable plastic bag.
Place pineapple slices /wedges in bag and shake to coat each slice/ wedge.
Grill pineapple slices on the preheated grill until heated through, 03 to 05 minutes per side.
For the Sauce:
In a small saucepan, add sugar with ½ cup of water.
Bring to a boil. Cook till light golden, honey like.
Remove from the flame and add coconut milk and Coconut cream.
The mixture will start bubbling, whisk very gently
For the serving:
Serve grilled garnished with mint leaves and accompanied with Caramel coconut sauce.
You may cut the pineapple into wedges instead of keeping it whole.
You may add lemon juice and honey to further enhance the flavor.