What is a notable ingredient in a Royal Flush cocktail?

The Royal Flush cocktail typically contains both cranberry juice and peach schnapps, making this combination a notable feature of the drink. Cranberry juice adds a tartness that balances the sweetness of the peach schnapps, creating a refreshing flavor profile. This combination of ingredients contributes to the cocktail's overall appeal and its popularity in social settings.

While pineapple juice is commonly found in many tropical cocktails and could provide a different flavor, it is not a standard ingredient in the Royal Flush. Thus, including both cranberry juice and peach schnapps is essential to capturing the essence of this cocktail and distinguishing it from other drinks.