While the chicken is out of the pot, it’s time to create the creamy, luxurious broth. Turn your slow cooker to the WARM setting or, if it only has LOW/HIGH, just leave it on LOW. Stir in the 1 cup of heavy cream and the ½ cup of grated Parmesan cheese until the cheese is fully melted and incorporated. Then, add the 2 cups of fresh spinach and the shredded chicken back into the pot. Stir everything together gently. Let it sit for 15-20 minutes on WARM to allow the spinach to wilt, the chicken to soak up the creamy broth, and all the flavors to marry beautifully. Give it a final taste and adjust salt and pepper as needed.
Pro Tips for Best Results
I tested the chicken three different ways: breasts on high, thighs on low, and breasts on low. For the most tender, juicy, shreddable chicken that doesn’t dry out, boneless, skinless thighs cooked on LOW are the absolute winner. They have more fat and connective tissue, which breaks down beautifully over the long, gentle heat, staying succulent no matter what. If you only have breasts, the low-and-slow method is still key to prevent them from becoming tough.
Here’s what I learned the hard way about adding dairy: never add the cream and Parmesan at the beginning. The long cooking can cause the cream to separate and the cheese to become grainy or form an unappealing film. Adding them at the end, after the chicken is cooked and you’ve lowered the heat, ensures a velvety smooth, perfectly emulsified broth every single time. This one tip makes all the difference in texture.
For an incredible depth of flavor, don’t discard the sun-dried tomato oil. It’s liquid gold! Using it to sauté the onions and garlic infuses the entire foundation of the soup with that rich, sweet-tomato essence. If you’re skipping the sauté step, still drizzle this oil over the chicken and onions in the crockpot. It adds a layer of flavor that you simply can’t get from the tomatoes alone.
Common Mistakes to Avoid
My first batch was disappointingly bland because I used regular-sodium chicken broth and added salt to the chicken at the beginning. Between the salty Parmesan and the seasoned broth, the final soup was over-seasoned and masked the other flavors. Now, I always use low-sodium broth and wait until the very end, after adding the cream and cheese, to taste and adjust the salt. The Parmesan adds plenty of saltiness on its own.(See the next page below to continue…)