Ingredients

2 C. Frozen pineapple
1 C. Coconut milk
1/2 C. White rum
1/2 C. Dark rum
1/4 C. Light brown sugar
2 T. Fresh lime juice
1/2 t. Vanilla
1 C. Ice cubes

Directions

Combine frozen pineapple and all ingredients except the ice in a blender, and process to smooth for roughly 2 minutes.
Put blender pitcher in the refrigerator, and let rest for at least 30 minutes.
When ready to serve, put the pitcher back on the blender and add ice, blend for 30 seconds and enjoy.