Use a mandolin or sharp knife to cut the oranges into 1/8 – 1/4th inch thick slices.
Lay the orange slices on a paper towel or clean, thin tea towel and press out any extra juice. This will save you some time on the baking step because you’re already doing some of the work and getting out excess juice.
Line a baking sheet with parchment paper and arrange them in a single, even layer. You don’t want any overlapping because then they won’t dehydrate evenly.
Bake according to thickness. For 1/4th inch thickness, bake for 4 hours, flipping halfway through. For 1/8th inch thickness bake for 3 hours, flipping halfway through.
Allow the orange slices to cool on the baking sheet.
Use a toothpick or skewer to poke two holes in either side of the dried orange slice.
Use a piece of string or twine to string up the orange slices in a line.
I like to tie a loop at each end so I can easily hang the garland by looping it on a nail or branch.
String up your garland on your mantle, on your tree, along a hanging picture or mirror, a door, the are so many fun ways to use your orange garland!