Cut the peel off of the lemons. It is okay if there are small patches of bright yellow peel remaining.
Place the lemons in a food processor or VitaMix and liquify. Keep pulsing until all the little bits of seed and pulp are itty-bitty.
(optional) Strain the lemon puree if you like pulp-free. (We like it best with all the pulp left in!). Set the puree aside.
At the stovetop, create the simply syrup. Combine water and sugar in a pot. Heat while stirring until water is clear again, then remove from heat. Let cool.
To create concentrate, use 1 pint size canning jars.
Fill each jar with 1 cup lemon puree and 1 cup simple syrup, then freeze.
When Making Lemonade from Concentrate later: In a pitcher, mix 1 jar of concentrate and two refills of the jar with cold water (~4 cups water). Add about 1-2 cups of ice to pitcher as desired.
Recipe by creatingmaryshome.com at https://creatingmaryshome.com/homemade-lemonade-concentrate/