So, I attempted to translate back to our measurements and I am glad I did. This was so good and refreshing and so simple. I would suggest you try this.
6-7 very ripe nectarines
2/3 cup water
2/3 cups sugar
1-2 tsp. fresh lemon juice
Cut the nectarines into dice-sized pieces. Don't peel them. This is where this beautiful pink color comes from. Add the water and bring to a boil. Cover and let cook for ten minutes. Be sure to check and stir now and then. Add the sugar, stir until dissolved, and then leave to cool completely.
Mix in a blender until smooth and add the lemon juice. Chill very well and then freeze in an ice cream freezer for about 15 to 20 minutes.