This Slow Cooker French Onion Chicken is packed with flavor and incredibly tender. Seasoned with French onion mix, caramelized onions, garlic, and Worcestershire sauce, it’s served with a rich gravy and is perfect with mashed potatoes for an easy dinner recipe.
2poundschicken breasts, pounded to ½ inch thickness
1cupchicken broth
2tablespoonsworcestershire sauce
3sprigsfresh thyme
2tablespoonscornstarch
2tablespoonswater
Instructions
Add the butter to a large skillet on the stove over medium-high heat.
Once the butter has melted, add the onions and caramelize for 10 minutes.
Add the garlic and saute for an additional minute.
Transfer the onions and garlic to a slow cooker.
Rub the french onion mix on the chicken breasts.
Add the chicken to the skillet that the onions were cooked in and sear for 2 minutes per side, on the stove over medium-high heat.
Once the chicken breasts are golden brown, transfer them to the slow cooker in a single layer. Add the chicken broth, Worcestershire sauce and fresh thyme.
Slow cook on high for 3-4 hours, or on low for 7-8 hours.
After the chicken breasts are cooked, open the slow cooker, remove the thyme sprigs and discard.
Remove the chicken breasts and place them on a plate or cutting board, cover tightly with foil.
If the slow cooker is not already set to high, turn the temperature to high.
In a small bowl, combine the cornstarch and water.
Add the cornstarch mixture to the slow cooker and stir to combine, cover and allow the gravy to cook together for 5 minutes.
Either serve the chicken immediately, topped with the french onion gravy from the slow cooker, or place the chicken breasts back in the slow cooker with the gravy until ready to serve.
Right before serving, garnish the chicken with fresh chopped parsley, if you'd like.
Notes
For instructions on how to make this recipe in a skillet on the stove, refer to the blog post above.
You should not add frozen chicken directly to the slow cooker. Instead, thaw the chicken in the refrigerator 1-2 days before preparing the meal, or use the defrost setting on your microwave to thaw the chicken quickly. From the USDA directly: “Always thaw meat or poultry before putting it into a slow cooker. Frozen pieces will take longer to reach a safe internal temperature and could possibly result in foodborne illness. Frozen or partially frozen foods can also cool everything else in the slow cooker.” Let’s just not take the risk and agree to thaw our chicken first!
If you would like to top the chicken with cheese, follow these instructions:
Remove the chicken from the slow cooker after the cooking time and place the chicken on a foil-lined baking sheet.
Top each piece of chicken with approximately 1/2 cup shredded gruyere cheese, swiss cheese or mozzarella cheese.
Place under the broiler in the oven on high for 1-2 minutes, or until the cheese is melted.
Plate the chicken and top it with the gravy from the slow cooker.
Leftover french onion chicken can be stored in the fridge in an airtight container for up to 6 days.