Jicama is a crunchy, slightly sweet vegetable that tastes like a cross between a water chestnut and an apple. It adds a delicious crunch to this salad. If you can’t find it at your supermarket, substitute an equal quantity of fresh fennel.
In a medium bowl, combine beets, oranges, onion and jicama. Set aside.
Dressing: In a small bowl, whisk together vinegar, orange juice, olive oil, salt and pepper. Add to beet mixture; toss gently. Chill. Sprinkle with parsley, if using, just before serving.