1/2 cup Irish cream liqueur (such as Baileys®)
1/2 cup coconut-flavored rum (such as Malibu®)
1/2 cup pineapple juice
1/2 cup cream of coconut
6 ice cubes
Mix the Irish cream liqueur, rum, pineapple juice, and cream of coconut together in a large pitcher. Pour 1/2 cup into a blender container. Add the ice cubes and blend to desired consistency. Pour the ice mixture into two glasses, dividing equally, and fill with the remaining rum mixture.