Place the sliced pineapple into a large saucepan and pour in water.
Add the brown sugar, cinnamon, cloves, and vanilla extract to the pot.
Bring the mixture to a gentle simmer over medium heat, allowing the sugar to dissolve as the liquid starts bubbling.
Reduce the heat to low and cover the pot loosely. Let it simmer gently for about 15 minutes, stirring occasionally and watching for the pineapple to soften and the syrup to thicken slightly.
Remove the cloves and give everything a gentle stir. The pineapple should be tender but still hold its shape, with the syrup thick and aromatic.
Serve the warm pineapple in bowls, spooning the sweet, spiced syrup over the top. Enjoy as a cozy dessert or a flavorful topping for breakfast.