Top-ranked recipe named "Beth's Grandmother's Pickled Beets"
Boil or steam beets until tender. Reserve 1 c of the cooking liquid, then drain beets and let them get cool enough to handle. Peel, slice, and pack beets and onions in 3 pint jars. Combine reserved liquid, sugar, vinegar, allspice, cloves, and cinnamon in a pot; bring to simmer and cook 5 mins. Strain; pour over beets. Cool, cover, and refrigerate 24 hrs.
Substitute apple cider vinegar for white vinegar.