Start by placing the chicken breasts into the slow cooker. Make sure to lay them out evenly so they cook uniformly. If desired, sprinkle a little salt and pepper over the top to season.
Next, take the cream of chicken soup and pour it over the chicken. Use a spatula to spread it evenly, ensuring all the chicken gets coated.
Now, add the onion soup mix. Just sprinkle the envelopes directly on top of the chicken and soup mixture. The flavors will infuse beautifully as it cooks.
If you're using it, pour in the water or chicken broth. This will help create a more saucy consistency. If you prefer a thicker sauce, you can skip this step.
Cover the slow cooker with its lid and set it to cook on LOW for 4 to 6 hours. The low heat allows the flavors to meld and the chicken to become tender and easy to shred.
When the cooking time is up, carefully check the chicken for doneness. It should shred easily with a fork. If it's still a bit firm, simply cook for another hour.
Before serving, take two forks and gently break the chicken breasts into bite-sized pieces. This helps mix the chicken with the creamy sauce.
Serve the Crockpot French Onion Chicken over hot steamed rice. The rice will soak up all the flavorful sauce, making each bite a delight.