Using the citrus knife, carefully peel oranges making sure to remove all the pith. Cut oranges into thin circles and place in mixing bowl.

Peel and halve onions. Cut each half into thin slices by hand or in electric processor. Add onion slices to oranges. Add olives to oranges and onions.

Sprinkle spices and oil over other ingredients. Toss gently. Taste. Add salt if desired.

Arrange salad attractively in serving dish. Garnish with mint leaves. Serve chilled.