The first time I saw hard-boiled eggs that had been pickled in beet juice, I found them a bit garish. But the pickling process both gives a slight tang to, and further firms up the whites to make them a sturdier carrier for a standard deviled filling.
Find this recipe here: https://www.pressherald.com/2018/03/25/recipe-red-beet-pickled-deviled-eggs/
