Preheat oven to 350 degrees F.
Boil yams until slightly underdone, to avoid breaking. Strain, cool and set aside.
In a large container whisk together orange juice, corn syrup, cinnamon, nutmeg, vanilla and zest. In another bowl, whisk flour and both sugars together.
Put cooled yams in a deep baking dish, add dry ingredients and stir to coat. Pour liquid over yams and bake for 20 to 25 minutes.
This recipe was provided by a chef, restaurant or culinary professional. It has not been tested for home use.
Recipe courtesy of Rhea P. Smith, Executive Chef, Soul Cafe, New York, NY