If you’re looking for a comforting, flavorful, and absolutely effortless dinner, let me introduce you to this Creamy Tomato Basil Chicken in Slow Cooker Recipe. I absolutely love how this turns out every time — tender chicken bathed in a velvety tomato and basil sauce. It’s one of those recipes that feels fancy but honestly takes less hands-on time than you’d think. Stick with me—I’ll walk you through every step so you can nail it easily and have a fabulous meal waiting for you at the end of the day.
Why You’ll Love This Recipe
- Super Simple Prep: Just throw everything in your slow cooker, and it does all the work.
- Rich Creamy Sauce: The blend of tomatoes and cream makes the sauce irresistibly silky.
- Fresh Basil Flavor: That fresh, fragrant herb brightens the dish perfectly.
- Versatile and Crowd-Pleasing: Great for family dinners, meal prep, or impressing guests without stress.
Ingredients You’ll Need
The magic of this Creamy Tomato Basil Chicken in Slow Cooker Recipe comes from simple ingredients that pack a punch when combined. From herby diced tomatoes to the luscious heavy cream, each adds a layer of flavor that works perfectly together.

- Diced tomatoes with Italian herbs: Adds chunkiness and robust herbal flavor that you don’t need to boost yourself.
- Marinara sauce: Choose a good-quality brand; it’s your tomato base so flavor matters here.
- Garlic: Minced finely to blend seamlessly into the sauce.
- Salt: Balances all the flavors beautifully.
- Italian seasoning: A blend of dried herbs that enhances the Italian vibe.
- Dried basil: Supplement fresh basil for that deep herbaceous note.
- Pepper: Freshly cracked if you can, for a hint of spice.
- Heavy whipping cream: This is what makes the sauce silky and rich—don’t substitute with regular milk.
- Cornstarch: Helps thicken the sauce so it clings to the chicken deliciously.
- Boneless skinless chicken breasts: Tender and lean, but you can swap with thighs for extra juiciness.
- Fresh basil: The finishing touch for a pop of fresh flavor.
- Grated Parmesan cheese: Optional, but I highly recommend for serving—the salty, nutty finish is irresistible.
Variations
I love that this recipe is super flexible—you can easily make it your own by swapping ingredients or adding your favorite twists. The key is keeping that balance between creamy and tomatoey, with a fragrant hit of basil at the end.
- Using chicken thighs: I tried thighs once because I had some in the freezer, and it came out even juicier and more flavorful—highly recommended if you like richer meat.
- Spicy kick: If you like heat, toss in a pinch of red pepper flakes or cayenne. It wakes up the whole dish.
- Basil pesto swap: When fresh basil is hard to find, a tablespoon of basil pesto stirred in at the end adds that fresh herby pop without needing the leaves.
- Dairy-free option: I haven’t tried this one myself, but you could experiment with coconut cream instead of heavy cream, though the texture and flavor will be different.
How to Make Creamy Tomato Basil Chicken in Slow Cooker Recipe
Step 1: Combine the Saucy Goodness
Start by dumping your canned diced tomatoes with Italian herbs, marinara sauce, minced garlic, salt, Italian seasoning, dried basil, and pepper directly into your slow cooker. I like to give it a gentle stir right away to marry those flavors and make sure nothing’s sitting dry on the bottom.
Step 2: Whisk and Add the Cream Mixture
In a small bowl, whisk together the heavy cream and cornstarch until smooth. This little mix is the secret to that perfect creamy sauce that thickens just right in the slow cooker. Pour it over your tomato mixture and give it a quick stir.
Step 3: Add the Chicken and Cook Low and Slow
Place your chicken breasts into the slow cooker, pressing them gently into the sauce, making sure they’re mostly covered. Set your slow cooker on low and let it work its magic for 3 to 4 hours. I always use a meat thermometer to make sure the chicken reaches 165°F — juicy and safe. Resist the urge to lift the lid too often; every peek adds more cooking time.
Step 4: Finish with Fresh Basil and Parmesan
Once the chicken is perfectly cooked, stir in the finely chopped fresh basil. Give the sauce a taste and adjust salt or pepper if needed. Serve each piece of chicken topped with a generous sprinkle of grated Parmesan cheese. It’s the kind of finish that makes this dish unforgettable.
Pro Tips for Making Creamy Tomato Basil Chicken in Slow Cooker Recipe
- Use Fresh Garlic: Mince your garlic finely or smash it to release richer flavor; this step really makes a difference in the sauce’s depth.
- Don’t Skip the Cornstarch: I learned this the hard way—the cornstarch keeps the cream from separating and thickens the sauce beautifully in the slow cooker environment.
- Low and Slow Cooking: Cooking on low heat keeps your chicken tender and prevents the sauce from curdling—a tip I always follow for creamy slow cooker dishes.
- Rest Before Serving: Letting the chicken sit in the sauce for 10 minutes after cooking helps the flavors meld and the sauce to thicken up a bit more.
How to Serve Creamy Tomato Basil Chicken in Slow Cooker Recipe

Garnishes
I always finish off this dish with a sprinkle of freshly grated Parmesan because it adds a salty, nutty touch that elevates the whole meal. Sometimes, if I have it on hand, a few extra basil leaves on top make everything look and smell amazing.
Side Dishes
When serving, I like pairing it with tender pasta—fettuccine or penne are my go-tos—because the sauce clings so well. Garlic bread on the side makes it extra cozy, and steamed green beans or a crisp salad round out the meal perfectly.
Creative Ways to Present
For a dinner party, I’ve served this chicken over creamy polenta, topped with a drizzle of olive oil and basil chiffonade. It looks gorgeous on white plates, and those little extra touches make your guests feel special without extra fuss.
Make Ahead and Storage
Storing Leftovers
Leftovers store beautifully in an airtight container in the fridge for up to 3 days. The sauce tends to thicken as it chills, so give it a good stir when reheating and add a splash of water or broth if it feels too thick.
Freezing
I’ve frozen this dish a couple of times (without the Parmesan) and it freezes well—just thaw overnight in the fridge before reheating gently on the stovetop. Freezing might change the basil’s texture, so I add fresh basil after reheating.
Reheating
The best way I’ve found to reheat is gently on the stovetop over low heat to keep the sauce smooth and avoid curdling. Microwave works too if you’re in a hurry; just be sure to stir every 30 seconds and maybe add a splash of cream or water.
FAQs
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Can I use chicken thighs instead of chicken breasts in this recipe?
Absolutely! Boneless, skinless chicken thighs actually work wonderfully because they stay extra juicy and tender in the slow cooker. Just keep the cooking time the same and check for an internal temperature of 165°F.
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What if I don’t have fresh basil on hand?
No worries! You can use dried basil or even a spoonful of basil pesto stirred in toward the end for that fresh herbal flavor. Fresh basil really elevates the dish, but substitutions work fine in a pinch.
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Can I prepare this recipe in advance?
Definitely. You can prep the sauce and chicken in the slow cooker insert the night before, refrigerate it, and then cook it the next day. Just bring it to room temperature for about 30 minutes before cooking to ensure even cooking.
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Is this recipe suitable for meal prep?
Yes! It reheats well and maintains flavor, making it perfect for meal prepping lunches or dinners. Just portion it out with your favorite sides and enjoy throughout the week.
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Can I use light cream or regular milk instead of heavy cream?
I don’t recommend substituting with light cream or milk because they can curdle during cooking. Heavy cream gives the sauce that rich, silky texture that makes this recipe so delicious.
Final Thoughts
This Creamy Tomato Basil Chicken in Slow Cooker Recipe has become one of my absolute favorites for busy weeknights and laid-back weekends alike. It’s the perfect combo of simple, flavorful, and satisfying, and I love knowing I can trust my slow cooker to deliver such a comforting meal with minimal effort. I can’t wait for you to try this—you’re going to impress everyone around your table with that rich, creamy sauce and tender chicken that tastes like you spent hours on it. Honestly, it’s kitchen magic, and I’m thrilled to share it with you.
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Creamy Tomato Basil Chicken in Slow Cooker Recipe
- Prep Time: 5 minutes
- Cook Time: 3 hours
- Total Time: 3 hours 5 minutes
- Yield: 4 servings 1x
- Category: Main Course
- Method: Slow Cooking
- Cuisine: Italian-American
Description
This Slow Cooker Creamy Tomato Basil Chicken is a comforting and flavorful dish that combines juicy chicken breasts with a rich, creamy tomato basil sauce. Perfect for an easy weeknight meal, the slow cooking method allows the flavors to meld beautifully while keeping the chicken tender and moist. Serve with pasta or your favorite side to enjoy a deliciously satisfying dinner.
Ingredients
Main Ingredients
- 1 can diced tomatoes with Italian herbs with juice (14oz or 398ml)
- 1 cup marinara sauce
- 3 cloves garlic (finely minced)
- 1 teaspoon salt
- 1 teaspoon Italian seasoning
- ½ teaspoon dried basil
- ¼ teaspoon pepper
- ½ cup heavy whipping cream
- 2 tablespoons cornstarch
- 4 boneless skinless chicken breasts (about 2 lbs)
- 2 tablespoons finely chopped fresh basil
- Grated Parmesan cheese for serving
Instructions
- Prepare the sauce: Add the diced tomatoes with their juice, marinara sauce, minced garlic, salt, Italian seasoning, dried basil, and pepper to a 4- to 6-quart slow cooker. Stir well to combine all the ingredients evenly.
- Mix cream and thickener: In a small bowl, whisk together the heavy whipping cream and cornstarch until smooth. Pour this mixture into the slow cooker and stir gently to incorporate it into the tomato mixture.
- Add chicken: Place the chicken breasts into the slow cooker, pressing them down so they are submerged in the sauce mixture for even cooking.
- Slow cook the chicken: Cover the slow cooker and cook on low for 3 to 4 hours, or until the chicken reaches an internal temperature of 165°F, ensuring it is thoroughly cooked and tender.
- Finish and serve: Stir in the chopped fresh basil into the sauce, then taste and adjust the seasoning if needed. Serve the creamy tomato basil chicken hot, topped with grated Parmesan cheese for added flavor.
Notes
- Some sauce was removed from the pictures in the slow cooker to show detail. The recipe makes plenty of sauce for pasta!
- Chicken: This recipe also works well with boneless, skinless chicken thighs, chicken meatballs, or sausages for variety.
- Tomato pasta sauce: Choose any flavorful marinara-style sauce; the more flavorful the sauce, the better the chicken tastes.
- Diced tomatoes: If you prefer a smoother sauce, substitute extra tomato sauce for the diced tomatoes.
- Cream: Heavy cream or evaporated milk work best as they do not curdle. Avoid using regular milk or light cream.
- Herbs & seasonings: Customize with spices like cayenne or red pepper flakes for some heat.
- Fresh basil substitute: If fresh basil is unavailable, swap with basil pesto to maintain the fresh basil flavor.
Nutrition
- Serving Size: 1 chicken breast with sauce
- Calories: 370
- Sugar: 6g
- Sodium: 780mg
- Fat: 22g
- Saturated Fat: 12g
- Unsaturated Fat: 8g
- Trans Fat: 0g
- Carbohydrates: 10g
- Fiber: 2g
- Protein: 35g
- Cholesterol: 110mg

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