- Pour the chilled cranberry juice and apple juice into a large pitcher, creating a deep red base for the punch. 
- Add the simple syrup to the juice mixture, stirring gently with a mixing spoon until well combined and slightly thickened. 
- Introduce 2 to 3 drops of red food coloring, adding sparingly to achieve a vivid, blood-red hue. Stir once more and observe the color intensify. 
- Once the mixture is uniformly colored, taste and adjust the sweetness or color if needed. For extra sparkle, gently pour in the club soda just before serving, stirring lightly. 
- Fill glasses with ice cubes and ladle the vampire punch over them, allowing the chilled, vibrant drink to shimmer in the glass. 
- Enjoy immediately to experience the refreshing, festive, blood-red glow of the Vampire Punch.