I started making my own Blood Orange marmalade last year and continued the tradition this year.
I followed the same recipe on both, the recipe is here.
It makes 2 1/2 small jars of orange marmalade which is just manageable to make and manageable to eat without sharing it.
This year I reduced the amount of sugar to 2 cups and I think there is still room to reduce it a bit further next year.
I love making orange marmalade this time of the year, it brings much needed sunshine shades to the kitchen and brightens up my days.