In blender combine all the ingredients except the elderberry syrup and blend until smooth.
Don’t add the elderberry syrup to the blender; otherwise your elderberry popsicles will be foamy.
Pour mixture into your favorite popsicle mold, then pour 1 tablespoon of elderberry syrup into each individual mold and freeze until firm. Usually about 4 hours. Round up your friends or favorite little people and enjoy!