My mother-in-law makes this 3-ingredient recipe for Sunday dinner. The savory sauce is absolutely incredible over rice or mashed potatoes.

 This slow cooker 3-ingredient creamy onion chicken is the kind of no-fuss Sunday dinner my mother-in-law has been making for years. It’s pure Midwestern comfort: tender chicken breasts simmered all afternoon in a rich, savory, creamy onion sauce that tastes like you fussed way more than you did. With just chicken, a packet of onion soup mix, and a can of cream soup, you get a thick, beige gravy-style sauce with little flecks of onion that’s absolutely incredible spooned over rice or a big scoop of mashed potatoes. It’s perfect for busy days when you still want everyone to gather around the table to something warm and homemade.

Serve this creamy onion chicken straight from the slow cooker, ladling the tender chicken and plenty of sauce over fluffy mashed potatoes, steamed white or brown rice, or buttered egg noodles. Add a simple green vegetable on the side—like steamed green beans, roasted broccoli, or a tossed salad—to balance the richness. Warm dinner rolls or crusty bread are wonderful for soaking up every bit of the savory gravy. For a cozy Sunday spread, I like to keep the sides familiar and kid-friendly so everyone can build their own plate just the way they like it.

Slow Cooker Creamy Onion Chicken

Servings: 6

Ingredients

2 to 2 1/2 pounds boneless, skinless chicken breasts (about 4–6 pieces)

1 (1.5-ounce) packet dry onion soup mix

1 (10.5-ounce) can cream of chicken soup (or cream of mushroom soup)

Directions

Lightly spray the inside of your slow cooker with nonstick cooking spray for easier cleanup.

Lay the chicken breasts in a single layer in the bottom of the slow cooker. It’s fine if they overlap a little, but try to keep them mostly flat so they cook evenly and stay tender.

In a small bowl, stir together the dry onion soup mix and the can of cream of chicken soup until well combined. The mixture will be thick and speckled with onion and seasoning.

Spoon the creamy onion mixture evenly over the chicken, spreading it so all of the chicken is well coated. Do not add extra water or broth; the chicken will release juices as it cooks and create a rich, thick sauce.

Cover the slow cooker with the lid and cook on LOW for 4 to 6 hours, or on HIGH for 2 1/2 to 3 1/2 hours, until the chicken is very tender and cooked through (165°F in the center).

Once done, gently shred the chicken into large chunks with two forks right in the slow cooker, or leave the breasts whole if you prefer. Stir them lightly so they’re well coated in the creamy onion sauce.

Taste the sauce and adjust with a pinch of salt and black pepper if needed. The onion soup mix is already salty, so you may not need much.

Serve the hot creamy onion chicken with plenty of the thick, beige gravy-style sauce spooned over mashed potatoes, rice, or noodles. Keep the slow cooker on WARM during dinner so everyone can come back for seconds.

Variations & Tips

For picky eaters, you can use cream of chicken soup for a milder flavor and cut the chicken into bite-size pieces before cooking so it feels more like a familiar chicken-and-gravy dish. If you like a little extra creaminess, stir in 2 to 4 tablespoons of sour cream or plain Greek yogurt at the very end of cooking (after turning off the heat) for a slightly tangier, richer sauce. To stretch the meal for a crowd, add an extra can of cream soup and a splash of milk, then serve over a big pot of rice. If your family enjoys mushrooms, scatter a cup of sliced fresh mushrooms over the chicken before adding the soup mixture. For a bit of color, stir in a handful of frozen peas during the last 20 minutes of cooking, or sprinkle chopped fresh parsley over the finished dish. You can also swap in boneless, skinless chicken thighs for an even more tender result; just cook on LOW for about 5 to 6 hours. If you prefer a thicker, almost gravy-like sauce, leave the lid off the slow cooker for the last 20 to 30 minutes on HIGH to let some of the liquid evaporate and the sauce reduce slightly.