Start by thawing your pineapple concentrate. If it’s still frozen, run the can under warm water for a minute or two, or scoop it into a bowl and let it sit at room temperature. This ensures it blends smoothly into the punch without clumping.

In a large punch bowl or pitcher, pour in the grenadine and the thawed pineapple concentrate. Stir well to combine, making sure the pineapple is fully mixed in with the grenadine for even flavor distribution.

Slowly pour in the Sprite or ginger ale. If using Sprite, the punch will be a little sweeter, while ginger ale adds a subtle spice. Pour gently down the side of the bowl or pitcher to help preserve the carbonation and keep the punch bubbly for longer.

Add the maraschino cherries. You can simply drop them in for a fun pop of color, or add a few to each glass when serving. For extra cherry flavor, stir in a spoonful of the cherry juice from the jar.

Give the punch a final gentle stir, then serve immediately over ice. If making it ahead, wait to add the soda until just before serving to keep it fizzy. Enjoy!