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juice or blend watermelon
Juice or blend the diced watermelon. You'll need about a quarter cup of juice for each popsicle.
add sweetner
Add the lemon juice and sweeten to taste. You can use a little bit of sugar or honey to sweeten the mixture to taste. Measurements will vary depending on how sweet your fruit is.
Freeze
Pour the fresh juice mixture into the popsicle molds and freeze until they are solid.