This recipe for watermelon simple syrup squeezes the flavor of fresh, summery watermelon into a syrup that you can put in any beverage you can imagine!
Make simple syrup. In a 1.5 quart non-reactive saucepan, combine 113 g of water with 150 g of sugar and heat over medium-low heat until the sugar is dissolved. Add in lemon juice if using.
150 g granulated sugar, 177 g filtered water, 1 tbsp lemon juice
Cool syrup. Once the sugar is dissolved, turn the stove off and remove the saucepan from the heat. Allow the simple syrup to cool while you prepare the watermelon juice.
Prep watermelon. Slice your watermelon in half to make it easier to trim the rind off of your melon. Trim the rind off the watermelon.
Cube melon. Cut it into cubes. You’ll need about 1 1/2 cups of watermelon cubes, or 250 g for 1 cup of watermelon purée.
Puree watermelon. Place watermelon cubes in the jar of a blender. Blend well until all the watermelon is puréed.
250 g watermelon, peeled and cubed
Stain juice. Strain the watermelon purée through a fine mesh sieve to remove the pulp. Discard the watermelon pulp.
Combine juice and syrup. Combine the strained watermelon juice with the cooled simple syrup.
Store syrup. Store the watermelon simple syrup in an airtight container in the fridge for up to 10 days.