Watermelon Frozen Slushy

Add the frozen chunks of watermelon to a blender.

Pour in the lemon or lime juice according to taste preference.

Add sugar to taste, starting with a small amount and adjusting as needed for desired sweetness.

Blend on high speed until the mixture reaches a slushy consistency, roughly 1–2 minutes, stopping to scrape down the sides as needed.

Divide the frozen slushy evenly among 4 serving glasses.

Serve immediately with a spoon or straw while still frozen and slushy.