To make this Delicious Smothered Sour Cream Chicken gluten-free. Simply ensure that your cornstarch. Is certified gluten-free. All other ingredients in this recipe. Are naturally gluten-free. Additionally, if you typically serve this dish over rice. Double-check that your rice. Is not cross-contaminated with gluten. This way, you can enjoy all the creamy, cheesy goodness. Without any gluten worries. It's a simple adjustment. That doesn't sacrifice any flavor. Or comfort.