Orange curd, like lemon and lime curd, isn’t difficult to find in many grocery, health food or even discount stores. I was in TJ Maxx checking out the jams and jellies section, which is nicely stocked throughout the year, when I saw a jar of orange curd and thought it, might make a nice macaron filling. The taste wasn’t as tangy as I thought it would be so adding orange extract was necessary to get a brighter and tangier orange flavor.