Start by gathering your ingredients, ensuring you have ripe peaches, freshly squeezed lemon juice, sugar, ice cubes, and either water or peach juice. Wash the peaches thoroughly and chop them into chunks, discarding the pits. Measure out two tablespoons of lemon juice and set aside the sugar in a small bowl.

In a blender, combine the chopped peaches, lemon juice, and sugar along with one cup of water or peach juice. Secure the lid and blend on high for about 30 seconds until smooth and creamy.

With the blender still running, gradually add in approximately three cups of ice cubes, allowing it to crush them into a slushy consistency. Blend for another 20-30 seconds, stopping occasionally to scrape down the sides if necessary.

Once you have reached that perfect slushy texture, pour the mixture into clear cups to showcase the vibrant color. Serve immediately for the best results.

Consider garnishing with fresh mint leaves or a slice of peach on the rim of each cup for a festive touch.