05/23/2025
Watermelon Popping Boba
Ingredients:
For the Watermelon Boba Mixture:
1 cup fresh watermelon juice (strained for smoothness)
1–2 tablespoons sugar or agave syrup (to taste)
½ teaspoon sodium alginate
Optional: 1 drop red or pink food coloring (for brighter appearance)
For the Calcium Bath:
2 cups cold water
1 teaspoon calcium lactate or calcium chloride
Tools Needed:
Blender or hand mixer
Fine mesh strainer
2 mixing bowls
Squeeze bottle, dropper, or small spoon
Slotted spoon
Cold water bowl (for rinsing boba pearls)
Directions:
Prepare the Watermelon Juice:
Chop and blend about 1½ to 2 cups of fresh watermelon chunks until smooth.
Pour the puree through a fine mesh strainer into a bowl to remove pulp and seeds.
Measure 1 cup of the strained juice for your recipe.
Sweeten and Blend with Sodium Alginate:
Add 1–2 tablespoons of sugar or agave syrup to the watermelon juice. Stir to dissolve.
Slowly sprinkle in ½ teaspoon of sodium alginate while continuously whisking to avoid clumping.
Use a blender or immersion mixer for 1–2 minutes to fully hydrate the alginate.
Let the mixture rest for 15–30 minutes to eliminate air bubbles.
Prepare the Calcium Bath:
In a separate bowl, mix 2 cups of cold water with 1 teaspoon of calcium lactate or calcium chloride.
Stir until the powder is fully dissolved.
Form the Popping Boba:
Transfer the rested watermelon mixture into a squeeze bottle, dropper, or use a small spoon.
Gently release drops of the mixture into the calcium bath, one at a time.
Observe as the drops instantly form into jelly-like spheres.
Set the Boba:
Allow the pearls to sit in the calcium bath for 30–60 seconds, depending on your desired "pop" texture.
Use a slotted spoon or mesh strainer to remove them carefully.
Rinse and Store:
Immediately transfer the boba pearls into a bowl of clean cold water to stop the reaction and rinse off the calcium.
Let them sit in the rinse water for 1–2 minutes.
Drain and use immediately or store in a simple syrup (1:1 sugar to water) for up to 24 hours in the refrigerator.
Prep Time: 10 minutes | Cooking Time: 0 minutes | Total Time: 10 minutes
Kcal: Approximately 30 per 2-tablespoon serving | Servings: Approximately Âľ cup of boba pearls