Wash the peaches thoroughly.
Chop them into small chunks, making sure to discard the central pit.
Place the peach chunks, coconut milk, Greek yogurt, sugar or honey, and cinnamon into a high-speed blender.
Add the rose water carefully, starting with a small amount. All brands have different strengths, and a little goes a long way.
Blend on high until the mixture is completely smooth and creamy.
Taste and adjust sweetness or the amount of rose water if needed.
Pour into 4 glasses and serve immediately.
Garnish your lassi with a sprinkle of crushed pistachios, a pinch of saffron threads, or a few edible rose petals for a beautiful presentation.