Drain pickled jalapeño pepper slices, discarding liquid and reserving jar and lid. Toss together jalapeño slices, red chile pepper slices, sugar, and lime zest. Let stand 5 minutes, stirring occasionally. Spoon into reserved jar, scraping any remaining sugar mixture from bowl into jar. Cover with lid, and chill 48 hours to 1 week, shaking jar several times a day to dissolve any sugar that settles.
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