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.
Serve immediately
Notes
✔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.