In a large bucket, combine white rum, pineapple juice, and grenadine.
Stir gently with a long-stemmed cocktail spoon to mix the ingredients.
Fill the bucket or punch bowl with crushed ice.
Garnish the bucket or punch bowl with a pineapple slice.
Notes
If you’d like to add some fizz to your Rum Bucket, consider incorporating a splash of lemon-lime soda or ginger ale. This will give the cocktail a refreshing and effervescent quality that complements the tropical flavors. Be sure to add the soda just before serving to preserve its carbonation.