Storing Candied Citrus Peel
I've never had candied peel go bad, even after more than 6 months. Nor my mother, and she was making it long before I was born, with what was then, very precious citrus peels. A few years ago, for some reason, the orange peel didn't dry as well as it usually does. What to do? I put the peel in a plastic container layered with sugar so that the pieces wouldn't stick together. The result was slightly drier pieces (hey, they were for me, not for company or gifts) and the sugar was flavoured with the citrus, that I used in baking items that I wanted to have an orange taste. Was it EVER GOOD!!!
I think your recipe directions were unclear or specific to a particular dish. Candied peel is best used at least two days after you make it-- it won't have dried sufficiently if you use it right away. After it's dried (i.e., no longer gooey to the touch, assuming you've rolled it in sugar), keep it in an airtight container and it will last at least six months... longer if you store it in the fridge.