Peel the skin off the ripe plantain, cut it in half then slice each half horizontally into quarters that can lay flat on a pan.
Place a pan over medium-high heat and add the butter. Once the butter is melted and starts to bubble, place each piece of plantain on the pan with the flat side lying down. Sear on both sides until golden brown.
Toss the whole cinnamon sticks into the pan and evenly sprinkle the brown sugar all over the plantains. Let the plantains caramelise on one side then turn to the other side.
Pour in the vanilla extract and the whisky. Shake the pan a little to mix all the liquids together and turn the plantain over to make sure each piece is coated with the whisky caramel.
If you’re using a gas cooker (cooker/stove with flames), turn it up. Make sure you are standing as far from the pan and cooker as possible whilst still holding firmly to the handle of the pan. Carefully pull the pan at an angle where the side closest to you is lifted up and the side farthest from you quickly comes in contact with the flames from the cooker. This will set the pan in flames, creating a nice flambe over the caramelised plantains. If you’re not using a cooker with flames, you can also use a kitchen lighter or preferably a butane torch lighter to put the flames in the pan. Immediately lay the pan back down on the stovetop and turn the cooker off. Leave the plantain flambe to sit until the flames gradually go out. Serve immediately with your choice of ice cream