Puree pineapple in a blender or with an immersion blender. Chill for at least 1 hour in freezer or refrigerate overnight. Place chilled pineapple in a glass and stir in liqueur and ice. Serve immediately
Notes
Variation:Instead of rum, substitute 1/2 cup {or more} almond milk or coconut milk
Keyword pineapple cocktails, pineapple smoothie, rum & pineapple drink