Prepare the Peaches. Start by washing and slicing the peaches. You can peel them if you prefer a smoother texture, but leaving the skin on adds a bit of extra flavor and color.
Make the Peach Puree. Blend the peach slices in a blender until smooth. If you prefer a smoother drink, strain the puree through a fine mesh sieve to remove any pulp.
Juice the Lemons. Squeeze the lemons to extract fresh lemon juice. For best results, use a citrus juicer to ensure you get every drop.
Combine Ingredients. In a large pitcher, combine the peach puree, lemon juice, sugar, and water. Stir well until the sugar is fully dissolved. Taste and adjust the sweetness or tartness by adding more sugar or lemon juice as needed.
Chill and Serve. Fill glasses with ice and pour the peach lemonade over. Garnish with peach slices, lemon wedges, or fresh mint leaves for an extra touch.