Slow Cooker French Onion Chicken

by Olivia

Slow Cooker French Onion Chicken – Boneless chicken breasts are topped with gooey Swiss cheese on a bed of thinly sliced onions in this crock-pot French onion chicken recipe.

The crock-pot does all the work of coaxing the onions into a caramelized state, a task that would take at least 30 minutes on the stove top while you babysit them the entire time, maybe longer.

If you never had a caramelized onion before then you are sincerely missing out on something special and you absolutely have to make this.

Thinly-sliced yellow onions are mixed with melted butter, Dijon, Worcestershire, a touch of sugar, salt and pepper plus a little flour to help thicken the flavorful juices that come out of them as they cook so you can spoon it over the chicken.


Slow-cooking the chicken causes it to be so tender you can slice through it with a fork. Just like butter.

Get this in your crock-pot in the morning and sit down later to one of the easiest, most comforting and delicious meals ever.

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Slow Cooker French Onion Chicken

Slow Cooker French Onion Chicken

Yield: 3 - 4 servings
Prep Time: 15 minutes
Cook Time: 7 hours
Total Time: 7 hours 15 minutes


  • 6 cups sliced, about ⅓-inch wide yellow onions (about 1 pound)
  • 2 tablespoons melted butter
  • 1 tablespoon Worcestershire sauce
  • 1 rounded teaspoon Dijon mustard
  • 1 tablespoon all-purpose flour
  • 1 teaspoon sugar
  • 1 teaspoon fresh thyme leaves or ¼ teaspoon dried
  • sea or kosher salt and fresh black pepper
  • 3 - 4 boneless chicken breasts
  • 1 + ⅓ cups shredded Swiss cheese or 3 - 4 thick slices


  1. Spray a 4 or 5 quart crock-pot with non-stick spray. Add the onions.
  2. In a small bowl whisk together the butter, Worcestershire, Dijon, flour, sugar, thyme and ½ teaspoon salt plus ¼ teaspoon black pepper.
  3. Pour it over the onions and toss to coat.
  4. Place the chicken breasts on top of the onions. Season well with salt and pepper.
  5. Cook on low 5 - 7 hours or high 3 - 4.
  6. Top the chicken with the cheese and put the lid on to melt.
  7. To serve place the chicken breasts on a platter and top with the onions. Ladle the juice over them.
Nutrition Information:
Yield: 3 Serving Size: 1 grams
Amount Per Serving: Unsaturated Fat: 0g

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