Have the lemon juice ready.

Squeeze all the juice you can out of the blueberries.

There won't be much.

Strain both the lemon juice and the blueberry juice through a strainer for a clear juice.

Heat the cup of water to boil in a small saucepan. Add the sugar and stir to dissolve.

Let cool a bit.

In a large bowl add the lemon and blueberry juice mixture, sugar water and 2 cups cold water.

Let cool before filling your Popsicle molds.

I used the Norpro Icepop Maker mold.

Fill up the mold with the juice.

Freeze at least 6 hours.