1 fluid ounce whiskey (such as Crown Royal®)
1 fluid ounce amaretto liqueur
1 fluid ounce pineapple juice
1 splash grenadine syrup
1 splash lemon-lime flavored soda
1 maraschino cherry
In a cocktail shaker full of ice, combine the whiskey, amaretto, pineapple juice, grenadine, and lemon-lime soda. Shake vigorously and strain into a martini glass. Serve with a maraschino cherry.