If the pith on the citrus peel is too thick, cut it off and discard. (For kumquats, cut the bottom part that held the stem off, then cut them in quarters and remove the seeds.)
Stack 5 pieces of citrus peel with the pith facing up and cut into a fine chiffonade (except kumquats).
Blanch the chiffonade (or quartered kumquats) 3 times in water, changing