@In A Pickle
You could try just dehydrated (not freeze dried) orange slices, then reconstitute the flesh part, or the peel part or both and see what flavors you'd like to keep. I was pleasantly surprised how good the slices are thrown in a drink or tea, hot or cold. I dried them at about 95 deg F for a longer time, they kept their flavor and color. If they are dried hotter they lose their nice color and start browning a little.
From dry, I can leave them whole slices, or put them into my spice/coffee grinder and make a powder. I keep this on my spice cabinet in a jar, for frozen desserts, for a nice citrus 'zing'. (I do lemons, limes, and oranges.)
Once they are dry, they can be used for more than a year without refrigeration.
I noticed that frozen orange concentrated orange juice about doubled in price from less than $2 to almost $4. I use a tablespoon of it in whole wheat bread. It takes the bitterness off the wheat. This was recommended by the Baking Book by King Arthur. It works and I use it all the time.