Instructions: Gently rinse and clean the rose petals, removing any debris or insects. In a large bowl, combine the cleaned rose petals, sugar, and lemon juice. Mix well, ensuring the petals are evenly coated with sugar. Let the mixture sit for about 2 hours to allow the sugar to macerate the rose petals. After the resting period, transfer the rose petal mixture to a large pot and add 2 cups of water. Place the pot over medium heat and bring the mixture to a boil. Stir frequently to prevent sticking and burning. Once boiling, reduce the heat to low and simmer the mixture for about 45-60 minutes, or until it reaches a jam-like consistency. Skim off any foam that forms on the surface. While the marmellata is cooking, sterilize your jars and lids in boiling water and let them dry. When the marmellata reaches the desired consistency, remove it from the heat and let it cool for a few minutes. Carefully ladle the hot marmellata into the sterilized jars, leaving a little space at the top for expansion. Seal the jars tightly. Allow the rose marmellata to cool completely before storing it in a cool, dark place. It will continue to thicken as it cools. Enjoy your homemade rose marmellata on toast, scones, or as a sweet condiment for various dishes!