From years of perfecting homemade jams, this exotic pink banana preserve bursts with tropical flavors. Thoroughly wash one orange, pat dry, and finely zest it. Juice all 8 oranges and the lime. In a heavy Dutch oven, combine the fresh juices with sliced banana flesh, vergeoise sugar, split vanilla beans, cinnamon sticks, and zest.
Cook uncovered over medium heat for about 50 minutes, stirring frequently to prevent sticking and ensure even thickening.
Remove the spices. Pour the piping hot jam into sterilized jars and seal immediately for a perfect set. For paraffin sealing, let cool first.