Citrus Stir fry with Chicken

I rarely get to watch any TV shows these days, between watching 3 kids, working part time, and keeping a house in order.  So it was a treat to catch even the last 10 minutes of a cooking show on PBS last week.  I don't know which chef it was, but at the end of the show he quickly showed some of the things you can do with citrus fruit.  One in particular struck me as sounding yummy, which led to the following recipe.  I happened to have leftover chicken which I used in it, but you could use any meat you like.  My husband and I both loved the flavors in this dish.
-Chelle

Citrus Stir Fry
vegetable oil for stir fry
1 medium onion, quartered and sliced
1 large or two small bell peppers, seeded and sliced
2 small oranges, peeled and cut into bite sized chunks
1/2 cup sugar snap peas
2 cups cooked chicken
2 Tablespoons gluten-free soy sauce
2 Tablespoons vinegar
1/2 teaspoon sugar
1 Tablespoon water
1 1/2 Tablespoons cornstarch

Combine the soy sauce, vinegar, sugar, water, and cornstarch.  Set aside.
Heat oil in a wok or skillet.  When it starts to shimmer add in the onions and peppers.  Stir constantly, until onions begin to become translucent.  Add the oranges, peas, and chicken.  Stir for 1-2 minutes until everything is heated.  Add the soy sauce solution and remove from heat.  Serve with brown rice.