I just came back in town, and am late to this thread, and have seen many already suggested stir fry. One poster suggested coating the pieces with cornmeal to keep the moisture.
That reminded me of "kung pao chicken" that I have not made for a while. So, I looked and found a recipe by Wolfgang Puck as follows.
Kung Pao Chicken Recipe : : Recipes : Food Network
Hey, Wolfgang Puck does know about kung pao chicken! Coating the pieces with a marinade that has corn starch stirred in will help seal in the juice later.
I always do this dish outside, with a wok sitting on a gas burner turned on high. Would not want to smoke up the kitchen. Fast cooking on high heat keeps the meat moist. It is not "kung pao" if the dish is not hot and spicy, but one can cut down on the dry chilies if one's tongue is "weak".
Many recipes also call for some diced veggies in this dish. I usually put in some diced red bell pepper, broccoli, and onion for some nice colors. That may not be the real "kung pao" but nobody ever said veggies are bad for you. I would stir fry the chicken pieces and the veggies separately so each would be cooked just right, then mixed them back together in the wok for a few seconds before serving.
The above photo is linked in from a blog on the Web, and is not from Wolfgang Puck. However, I could see that the dish shows the same ingredients as Wolfgang's recipe. I think this is closer to the authentic dish, which may not have much veggie.
Ah... I will make this tomorrow. I already have lemon chicken baking in the oven for tonight, using Ina Garten's recipe.