In a large saucepan over medium heat, add diced peaches, lemon zest, sugar and 2 cups of water. Stir to dissolve sugar and let mixture simmer. (do not boil, reduce heat if needed)
When peaches are very soft, mash them with a potato masher or fork to break them up.
Let mixture simmer until it thickens slightly.
Remove from heat and let cool.
Strain the peach syrup mixture into a bowl and discard the solids.
Add the lemon juice to the peach mixture.
Pour into a container along with 4 cups of water or sparkling water.
Refrigerate until cold if desired.
Fill glasses with ice. Fill with peach lemonade.
Garnish with fresh peach slices, fresh lemon slices and mint.
✔Make sure that the mixture cools before adding it to the container. ✔I added a little soda water to the peach lemonade. If adding soda don’t add more soda and less of the juice, it should be the other way.