In a medium pot, cover the rose petals with the water.
Cover the pot and bring the liquid to a boil, then reduce the heat and simmer on low. Continue cooking for 20-30 minutes, until the petals lose their color and the water is infused with rose scent and flavor. Depending on the color the rose petals, the rose water may be golden, pink, or more clear.
Remove from the heat and cool. Strain the liquid and discard the rose petals, storing the rose water in a glass bottle or jar.