This oven-baked chicken features tender breasts smothered in a thick sauce of softened yellow onions and melted cream. Seasoned with thyme and onion powder, the dish develops a deep, savory aroma as it bakes, with the onions turning sweet and translucent under a blanket of heavy cream. It is served hot from the casserole dish, providing a rich and velvety meal where the onions provide a subtle bite against the smooth sauce.

About This Recipe

The yellow onions are sliced thin and sautéed in a skillet until they turn soft and golden before being combined with the liquid base. Once the cream cheese and heavy cream are stirred in, the mixture forms a heavy, ivory-colored sauce that is poured directly over the raw chicken breasts in a baking dish. This initial stovetop step ensures the onion flavor is fully released into the cream before the dish ever enters the oven.

While baking, the chicken remains covered to allow the steam from the broth and cream to surround the meat. During the final ten minutes of cooking, the foil is removed, letting the top of the sauce thicken and bubble around the edges of the chicken. The onions continue to soften in the hot fat, integrating into the sauce until the consistency is uniform and heavy enough to be scooped with a spoon.

You’ll see the long strands of onion tangled with the chicken, all coated in a glossy, herb-flecked cream. The scent of toasted onion and warm thyme is prominent, and the sauce takes on a slightly golden hue from the sautéed onions. It is a dense, substantial meal that fills the plate with a rich dairy base, making it a warming option that is best enjoyed immediately while the sauce is at its thickest.

---

Why You’ll Love This Recipe

• Creamy baked chicken without flour
• Rich onion flavor
• Oven-baked, hands-off cooking
• Keto and low-carb friendly
• Great for meal prep
• Reheats without drying out
• Classic comfort food feel

---

What You’ll Need for This Keto Creamy Onion Chicken Bake

• 1½ lb boneless, skinless chicken breasts
• 1 tbsp olive oil
• 1 tsp salt
• ½ tsp black pepper
• 1 tsp onion powder
• 1 large yellow onion, thinly sliced
• ¾ cup heavy cream
• 4 oz cream cheese, cubed
• ½ cup chicken broth
• ½ tsp dried thyme

---

Step-by-Step Preparation

1. Preheat oven to 375°F.
2. Heat olive oil in a skillet over medium heat. Add sliced onion and cook for 8–10 minutes until soft and lightly golden.
3. Add chicken broth to the skillet and simmer for 2 minutes.
4. Stir in cream cheese until melted and smooth, then add heavy cream, salt, black pepper, onion powder, and thyme.
5. Place chicken breasts in a baking dish and pour the onion cream sauce over the top.
6. Cover with foil and bake for 25 minutes.
7. Remove foil and bake for an additional 10–15 minutes until chicken is cooked through and sauce is thick.
8. Remove from oven and rest for 5 minutes before serving.

---

FAQ

• Can I use chicken thighs instead of breasts?
  Yes, thighs work very well and stay extra juicy.
• Is this dish cheesy?
  No, it’s creamy but not cheesy in flavor.
• Does this reheat well?
  Yes, reheat gently to keep the sauce smooth.
• Can I make this ahead of time?
  Yes, assemble and bake when ready, or bake fully and reheat.

---

Variations & Substitutions

• Add mushrooms to the onion sauce
• Use fresh thyme instead of dried
• Add garlic for extra depth
• Use bone-in chicken (adjust cook time)

---

Serving Suggestions

• Serve with cauliflower mash
• Pair with roasted broccoli
• Enjoy on its own

---

---

Did you make this recipe?

I’d love to hear from you — leave a comment below and tell me how it turned out, what you liked, or if you made any tweaks!

Try these next:

• Creamy Mushroom Chicken Skillet
• Garlic Chicken Thigh

New keto recipes are added every week — check back often for more low-carb inspiration!