Slow Cooker French Onion Chicken Recipe

This slow cooker french onion chicken recipe is the ultimate easy dinner for families on busy weeknights. This easy meal has all the savory flavors of delicious bistro soup and you’ll never believe how fast it comes together before work!

The bone-in chicken thighs make sure every bite is incredibly juicy and tender while cooking in the slow cooker for hours. And, as the sweet onions cook and combine with the delicious condensed soup, your house smells amazing. Dinner is ready and waiting for you when you get home!

Why You Will Love This Recipe

You are going to fall in love with the luscious flavor and melt-in-your-mouth texture of these super tender chicken thighs. They slowly cook on a bed of fresh, sliced onions, absorbing tons of savory flavor and creating an amazing rich broth. The gooey, melted Swiss cheese on top is the perfect finishing touch.

It’s also so easy and hands off, whether you’re making it for a super busy school night or a lazy weekend. Just throw everything into the pot and let the slow cooker do the work and keep your kitchen clean. This is the perfect cozy meal for when you’re craving a good dinner but don’t want to spend any time prepping or cleaning up!

The Ingredients

Here’s what you need to grab at the grocery store for this easy dinner:

Bone-In Chicken Thighs

These are the best cut of chicken for this recipe because the bone helps the chicken stay nice and juicy and tender while cooking in the slow cooker. You’ll want to leave the skin on while cooking for extra flavor, although you can certainly remove the skin before eating if you’d like. Boneless, skinless chicken breasts will also work great in this recipe, but be sure to check them sooner so they don’t get too dry!

Condensed French Onion Soup

This handy pantry item does all the hard work for you and adds a ton of savory flavor, as if it had been simmering for hours, without having to actually do that. All you do is scoop it out of the can and pour it over the raw chicken, and you’re done! Out of French onion soup? A can of condensed cream of mushroom or even golden mushroom soup is a great alternative; it makes a deliciously savory, though creamier, substitution.

Swiss Cheese

The Swiss cheese is the perfect finish to create that classic, gooeyness that you expect from a traditional French onion soup. The cheese will be placed directly over the top of the hot chicken during the final few minutes of cooking to get it nice and stretchy. If Swiss cheese is not your preferred variety, thick slices of provolone or even shredded mozzarella cheese melt just as nicely and taste just as good!

How to Make It

Now let’s take a look at just how easy it is to prepare this four ingredient slow cooker meal.

Prep the Onion Base

Cut the yellow onion and spread the pieces evenly over the bottom of your slow cooker pot. The onions will serve as a barrier and prevent the chicken from getting stuck to the bottom of the pot.

Add the Chicken

Arrange your bone-in chicken thighs in a single, even layer directly on top of the sliced onions. Try to keep them skin-side up so they cook evenly in the savory broth.

Pour the Soup

Pour the condensed French onion soup evenly over the chicken thighs and use the back of a spoon to spread it around until each thigh is covered.

Slow Cook

Cover the slow cooker with the lid and cook on low for 5 to 6 hours. The chicken thighs will also cook in approximately 3 to 4 hours on the high setting.

Melt the Cheese

When the chicken is done cooking, place the slices of Swiss cheese directly over the top of the chicken thighs. Replace the lid on the slow cooker for approximately 5 minutes to allow the cheese to become melted and gooey.

My Best Tips for Success

If you like the appearance of traditional roasted chicken, you can broil the thighs for about 3 minutes to crisp up the skin just before placing the cheese on top. Use tongs to move the cooked thighs from the slow cooker to a baking sheet and broil them before topping them with cheese. The finished product looks as good as it tastes!

Don’t be afraid to add another sliced yellow onion to the bottom of the slow cooker, if space allows. The onions will cook down into the soup creating a rich, savory gravy that is fantastic served over mashed potatoes.

If the condensed soup is particularly thick after opening the can, stir it in a small bowl for a minute or two to loosen it up. This will make it easier to spread over the chicken thighs.

Storage and Reheating

• To Store: Allow the chicken to cool to room temperature. Place the chicken and all of the juices in an airtight container and refrigerate for up to 3 days.
• To Freeze: Freeze the cooked chicken in a freezer safe container for up to 3 months. Note that the texture of the cheese will be slightly altered upon thawing.
• To Reheat: Reheat the chicken in a skillet or microwave, spooning some of the reserved juices over the top to keep it super moist.

What to Serve with This Chicken

• Creamy mashed potatoes, for soaking up all the delicious onion gravy.
• Wide egg noodles, with a dash of fresh parsley and butter.
• Thick slices of crusty French bread, toasted, perfect for dipping right into the broth.
• Steamed green beans, or roasted asparagus.

Frequently Asked Questions

Can I use boneless chicken thighs?

Yes! Boneless, skinless chicken thighs work beautifully in this recipe and are perfect if you don’t want to deal with bones. They may cook a little faster, so check for doneness around the 4 hour mark on low.

Is it okay to use a different kind of soup?

If you need to substitute something, you can do so. Cream of mushroom or cream of chicken will change the taste somewhat, but both will yield a very creamy, savory gravy, and are just as tasty.

Can I cook this recipe on high?

Yes! If you’re in a hurry, you can cook this on high for 3 to 4 hours. Use a thermometer to make sure the chicken reaches 165°F internally.