Course: Drinks, smoothies
Cuisine: American
Keyword: Frozen Watermelon Daiquiri
Replacements
Use fresh or bottled lime juice.
Rum: Use your preferred light rum; the heavy stuff is better reserved for marinades or other specialty cocktails!
Mint: The best kind is fresh mint, but you can also use one tablespoon of your preferred simple syrup and one tablespoon of reduced lime juice.
Without a mortar and pestle, muddle
Use a glass cup and the end of a wooden spoon in place of a mortar and pestle if you don't have one. Simply add the lime juice and mint to the glass, then crush the mint with the wooden spoon's end.