=== Grapefruit marmalade === From the NY Times http://www.nytimes.com/2015/08/02/magazine/the-miracle-of-preserves.html Remove the peel from four grapefruits with a knife. Slice three thinly. Segment the fruit itself from its membrane into a bowl, with all attendant juices (remove pits, or did I have to mention that?). Boil the sliced peel with 2 cups of water for 20 minutes. Add grapefruit, juice and three cups of sugar, and boil until it lightly jells. The result is bitterer than orange marmalade, a perfect expression of grapefruit’s oddities and opposites.