Ponche de Pina

3 Pineapple
3 cups Water
3 Cinnamon sticks
2 tsp whole Cloves
2 tsp whole Allspice
3/4 cup Sugar
1 cup Coconut milk
1 qt Light rum

Peel pineapples, chop or shread. Add water and let stand overnight. Put in large saucepan with spices, sugar, and coconut milk. Boil for 5 minutes. Strain liquid into large pitcher. Add rum and serve hot.