Pineapple Flip

1. In a cocktail shaker, combine the white rum, pineapple juice, simple syrup, lime juice, and egg white.
2. Dry shake (shake without ice) vigorously for about 10-15 seconds to froth up the egg white.
3. Add ice to the shaker and shake again for another 10-15 seconds to chill the drink.
4. Strain the mixture into a chilled glass.
5. Garnish with a slice of pineapple.
6. Enjoy your Pineapple Flip cocktail!

Remember to adjust the sweetness to your liking by adding more or less simple syrup. This cocktail combines the tropical flavors of pineapple with the smoothness from the egg white, creating a refreshing and frothy beverage.