Creamy Garlic Mushroom Crock Pot Chicken Thighs
These creamy garlic mushroom crock pot chicken thighs are perfect for those days when you want a hot, comforting dinner without standing over a warm stove. Everything cooks together in the slow cooker, including tender bone-in chicken thighs, sliced mushrooms, onion, garlic and a rich Parmesan cream sauce. It is an easy all-in-one dinner with plenty of homemade flavour and very little hands-on work.
This slow cooker chicken thigh recipe works just as well on a chilly evening as it does during warmer weather when you would rather not heat up the kitchen. Add the ingredients, let the crock pot do the cooking and come back to juicy chicken covered in a savoury creamy mushroom sauce. Serve it with mashed potatoes, rice, noodles or crusty bread for a satisfying family dinner that feels special but takes minimal effort.
Short Description of the Recipe
These creamy garlic mushroom crock pot chicken thighs are made with tender bone-in, skin-on chicken thighs, sliced mushrooms, onion, fresh garlic and a rich Parmesan cream sauce. The chicken cooks slowly until it is juicy and tender, while the mushrooms and onions soak up all that savoury flavour. It is an easy slow cooker chicken dinner that feels comforting and homemade without needing much hands-on cooking.
Why This Recipe Is So Good
This recipe gives you plenty of flavour with very little effort. Browning the chicken thighs first adds a deeper, more savoury taste, and those browned bits make the creamy mushroom sauce even better. It takes a few extra minutes, but it is worth it.
The chicken stays moist because bone-in thighs handle slow cooking really well. The garlic, onion, mushrooms, Dijon mustard and Parmesan create a rich sauce that tastes like you spent much longer in the kitchen. You really do not need to fuss with it. Once everything is in the crock pot, dinner mostly takes care of itself.
It is also a practical recipe. Serve the chicken and creamy sauce over mashed potatoes, rice or noodles, and you have a complete, satisfying family meal.
When to Serve It
These slow cooker creamy chicken thighs are perfect for busy weeknights, relaxed Sunday dinners or any day when you want a hot meal without standing over the stove. They are especially comforting during fall and winter, but the crock pot also makes them a great choice in warmer weather because you do not have to heat up the whole kitchen.
This is also a lovely dinner to serve when family comes over. It looks special on the plate, especially with a little fresh parsley or rosemary, but the preparation is simple. Add a green vegetable, warm bread or a fresh salad and dinner is done.
Tips and Tricks
Brown the chicken thighs first. Searing the skin adds much better flavour and gives the chicken an appetizing golden colour. It is a small extra step, but it makes a noticeable difference in this creamy crock pot chicken recipe.
Keep the chicken skin facing upward. Try not to completely cover the skin with liquid. It will still soften in the slow cooker, but keeping it above the sauce prevents it from becoming overly soggy.
Broil the chicken before serving. For crispier skin, place the cooked chicken thighs on a baking sheet and broil them for 2–4 minutes. Stay close. The skin can go from golden to too dark fairly quickly.
Do not add the cream too early. Stir the heavy cream and Parmesan into the crock pot near the end of cooking. This helps the creamy garlic mushroom sauce stay smooth instead of separating.
Let the sauce thicken before judging it. The mushroom sauce may look a little thin when the chicken first comes out. Once the cornstarch slurry, cream and Parmesan are stirred in, it thickens nicely.
Check the chicken with a thermometer. Chicken thighs are safe at 165°F, but bone-in thighs usually become more tender when cooked closer to 175°F–185°F.
Taste before adding more salt. Chicken broth, Parmesan and Worcestershire sauce all contain salt, so the finished creamy sauce may not need much extra seasoning.
Serve it with something that catches the sauce. Mashed potatoes, rice, egg noodles or crusty bread are especially good with these slow cooker creamy chicken thighs. There is usually plenty of sauce, and you will not want to waste it.
Ingredient Notes
Bone-In, Skin-On Chicken Thighs
Bone-in, skin-on chicken thighs are ideal for slow cooking because they stay juicy and tender during the longer cooking time. The skin adds flavour, especially when it is browned first. Boneless thighs may also be used, but they will cook more quickly.
Mushrooms
Cremini mushrooms have a deeper, more savoury flavour and hold their texture well in the crock pot. White button mushrooms are a perfectly good substitute. Slice them fairly thick so they do not disappear into the sauce.
Onion
Yellow onion becomes soft and slightly sweet as it cooks, creating a flavourful base for the creamy mushroom sauce. Thin slices work well because they cook down and blend naturally into the finished dish.
Garlic
Fresh minced garlic gives these creamy garlic chicken thighs their best flavour. Four cloves may sound like a lot, but the garlic softens as it slow cooks and does not taste harsh.
Chicken Broth
Low-sodium chicken broth adds moisture and savoury flavour without making the sauce too salty. The broth also helps loosen the browned bits from the skillet after searing the chicken.
Heavy Cream
Heavy cream creates a rich, smooth crock pot chicken sauce and is less likely to separate than milk. Add it near the end rather than letting it cook for several hours.
Parmesan Cheese
Finely grated Parmesan melts more easily and helps thicken the creamy garlic mushroom sauce. Freshly grated Parmesan usually blends more smoothly than the pre-shredded kind.
Dijon Mustard
Dijon mustard adds a little tang and depth without making the finished sauce taste strongly of mustard. It balances the richness of the cream and Parmesan.
Worcestershire Sauce
A small amount of Worcestershire sauce brings extra savoury flavour to the mushrooms and chicken. You may not identify it in the finished dish, but the sauce tastes fuller with it.
Cornstarch
Cornstarch thickens the creamy mushroom sauce at the end of cooking. Always mix it with cold water before adding it to the crock pot so it does not form lumps.
Fresh Herbs
Fresh parsley adds colour and a clean flavour just before serving. Rosemary or thyme also works well, but use them lightly because both can become quite strong.
Variations
Use Boneless Chicken Thighs
Boneless, skinless chicken thighs work well in this creamy garlic mushroom crock pot chicken recipe, but they will cook faster than bone-in thighs. Begin checking them early so the chicken does not become overly soft or dry.
Make It with Chicken Breasts
Boneless chicken breasts may be substituted, although they are leaner and can dry out more easily. Cook them only until tender and fully cooked. Large breasts can also be cut in half so they cook more evenly.
Add Spinach
Stir a few handfuls of fresh spinach into the creamy mushroom sauce during the final 10 minutes. The spinach wilts quickly and adds colour without changing the flavour too much. Frozen spinach also works, but thaw and squeeze it dry first.
Add Sun-Dried Tomatoes
Chopped sun-dried tomatoes give these slow cooker creamy chicken thighs a slightly tangy, savoury flavour. Add about ⅓ cup with the mushrooms and onions. Oil-packed tomatoes should be drained well so the sauce does not become greasy.
Make It Extra Garlicky
Add one or two additional garlic cloves for a stronger garlic flavour. Roasted garlic is another nice option because it tastes softer and slightly sweet in the creamy Parmesan sauce.
Change the Herbs
Thyme and rosemary are classic with chicken and mushrooms, but Italian seasoning, tarragon or fresh basil can also be used. Go lightly with rosemary. It can take over the sauce quite quickly.
Make a Lighter Sauce
Half-and-half may be used instead of heavy cream, although the sauce will be slightly thinner and more likely to separate. Add it near the end and avoid letting the sauce boil.
Add More Vegetables
Small pieces of carrots, celery or chopped green beans can be added with the onions and mushrooms. Keep the pieces fairly small so they become tender during the slow cooking time.
Storage Tips
Allow the creamy crock pot chicken thighs to cool before transferring them to an airtight container. Store the chicken and mushroom cream sauce together in the refrigerator for up to 3–4 days.
For the best results, reheat the chicken gently in a covered skillet over low heat or in the microwave in short intervals. Add a splash of chicken broth or cream if the sauce becomes too thick. Slow reheating helps keep the chicken tender and prevents the Parmesan cream sauce from separating.
Leftovers can be frozen for up to 2 months, although cream-based sauces sometimes look slightly grainy after thawing. Freeze the chicken and sauce in a freezer-safe container, leaving a little space at the top. Thaw overnight in the refrigerator and stir the sauce well while reheating.
Remove leftover chicken from the bones before freezing if you want an easier meal later. The shredded creamy mushroom chicken is especially good served over rice, mashed potatoes, pasta or toasted bread.
Creamy Garlic Mushroom Crock Pot Chicken Thighs
Equipment
- 6-quart slow cooker or crock pot
- Large skillet for browning the chicken thighs
- Tongs
- Sharp kitchen knife
- Cutting board
- Measuring cups and spoons
- Wooden spoon or silicone spatula
- Small bowl for mixing the cornstarch slurry
- Whisk
- Instant-read meat thermometer
- Baking sheet, optional for broiling the chicken skin
Ingredients
- 6 chicken thighs bone-in, skin-on
- 1 tsp salt
- ½ tsp black pepper freshly ground
- 1 tsp garlic powder
- 1 tsp Italian seasoning dried
- 1 tbsp olive oil
- 1 tbsp butter
- 1 yellow onion medium, thinly sliced
- 10 oz white mushrooms or cremini, sliced
- 4 garlic cloves minced
- 1 cup chicken broth low-sodium
- 1 tbsp Dijon mustard
- 1 tsp Worcestershire sauce
- ½ tsp thyme dried
- ½ tsp rosemary dried
- ¾ cup heavy cream
- ⅓ cup Parmesan cheese finely grated
- 1 tbsp cornstarch
- 1 tbsp cold water
- 2 tbsp chopped fresh parsley
- Fresh rosemary or thyme for garnish optional
Instructions
- Pat the chicken thighs dry with paper towel. Season both sides with the salt, pepper, garlic powder and Italian seasoning.
- Heat the olive oil in a large skillet over medium-high heat. Place the chicken thighs in the skillet skin-side down and cook for 5–7 minutes, without moving them too much, until the skin is deeply golden. Turn and cook the second side for 2 minutes. Transfer the thighs to a plate.
- Reduce the heat to medium and add the butter, onion and sliced mushrooms to the same skillet. Cook for 5–6 minutes, stirring occasionally, until the onion softens and the mushrooms begin to brown.
- Add the minced garlic and cook for about 30 seconds. Pour in the chicken broth, scraping up the browned bits from the bottom of the skillet. Stir in the Dijon mustard, Worcestershire sauce, thyme and rosemary.
- Transfer the mushroom and onion mixture to the crock pot. Arrange the chicken thighs over the vegetables with the skin facing upward. Try to keep most of the skin above the liquid.
- Cover and cook on low for 4–5 hours or on high for 2½–3½ hours, until the chicken is tender and reaches a safe internal temperature. Bone-in thighs are especially tender around 175°F to 185°F.
- Carefully transfer the cooked chicken to a plate. Stir the heavy cream and Parmesan cheese into the sauce.
- Mix the cornstarch with the cold water. Stir the slurry into the crock pot sauce, cover and cook on high for another 10–15 minutes, until the creamy mushroom sauce thickens.
- Return the chicken to the sauce and sprinkle with fresh parsley.
- For crispier skin, place the cooked thighs on a foil-lined baking sheet and broil for 2–4 minutes before serving. Watch closely—the skin can brown quickly.
Notes
- Bone-in, skin-on chicken thighs work best for this creamy garlic mushroom crock pot chicken because they stay juicy during the longer cooking time.
- Browning the chicken skin before adding it to the slow cooker creates better colour and deeper flavour. It is worth the few extra minutes.
- Keep the chicken thighs skin-side up and avoid pouring the cooking liquid directly over the skin. The skin will soften in the crock pot, but this helps prevent it from becoming too soggy.
- Slice the mushrooms fairly thick. Thin mushroom slices tend to shrink quite a bit as the slow cooker chicken thighscook.
- Sautéing the onion, mushrooms and garlic in the same skillet used for the chicken picks up all those browned bits. That is where a lot of the flavour comes from.
- Add the heavy cream and Parmesan cheese near the end of cooking. Dairy can separate when cooked for several hours, especially on high heat.
- Mix the cornstarch with cold water before stirring it into the sauce. Adding dry cornstarch directly to the crock pot can leave small lumps.
- The creamy mushroom sauce may look thin when the chicken first comes out. Give it 10–15 minutes to thicken after adding the cream, Parmesan and cornstarch slurry.
- Chicken thighs are safe to eat at 165°F, but bone-in thighs are often more tender when cooked to around 175°F–185°F.
- For crispier chicken skin, place the cooked thighs under the broiler for 2–4 minutes before serving. Watch them closely. They brown fast.
- Taste the finished garlic mushroom sauce before adding more salt. Chicken broth, Parmesan and Worcestershire sauce already bring plenty of savoury flavour.
- Serve these creamy crock pot chicken thighs with mushrooms and onions over mashed potatoes, rice, egg noodles or pasta so none of the sauce goes to waste.
Ellen Britt
Hi, I’m Ellen — a passionate home cook dedicated to creating easy, flavorful recipes inspired by real-life cooking and shared family traditions. Every recipe on this site is a true collaboration, developed and tested together in our kitchen to ensure it’s reliable, simple to follow, and absolutely delicious.