Plantain Mash

1. Cut plantains in half crosswise, then each half lengthwise. Place in a saucepan with cinnamon sticks, sugar, half the butter and water to cover. Bring to a simmer; cook until plantains are soft, about 20 minutes.

2. Remove plantains from saucepan, but do not discard cooking liquid. Puree plantains through a food mill or a potato ricer into a large bowl; do not use a food processor. Stir in remaining butter and ½ cup or more cooking liquid to make a soft, smooth puree. Add rum, stir and season with salt. Serve at once, or set aside and reheat gently in saucepan, adding liquid if needed.