Hot & Sour Citrus Peel

Make your candied citrus peel.  To coat it, per cup of granulated sugar, add 3/4 tsp kosher salt, 3/4 tsp powdered citric acid, 1/4 tsp cayenne pepper.  That, for me, is on the tame side; your mileage may vary.  Play around with it.  Szechuan pepper, smoked salt, lime powder...

I've been doing this with grapefruit peel.

It'll get your attention.  cheers.