Slow Cooker Creamy Tomato Basil Chicken delivers tender, juicy chicken breasts in a rich, creamy marinara sauce with fresh basil notes. This dump-and-go recipe uses pantry staples for busy weeknights and serves perfectly over pasta or rice. Ready in just 3-4 hours, it earns rave reviews for its flavor and simplicity.
Why You’ll Love This Recipe
This slow cooker dish transforms basic ingredients into a restaurant-quality meal. The creamy tomato basil sauce clings to the chicken without curdling, thanks to a simple cornstarch trick. Families love its versatility-serve it standalone, over spaghetti, or with rice for a complete dinner.
- Minimal prep: Just 10 minutes before cooking.
- Foolproof results: Chicken stays moist at 165°F internal temperature.
- Customizable: Swap chicken thighs or add veggies easily.
- Make-ahead friendly: Freezes beautifully for meal prep.
Ingredients
Gather these 9 simple items for 4-6 servings. All are easy to find and budget-friendly.
- 4 boneless, skinless chicken breasts (about 2 lbs or 900g)
- 1 can (14 oz or 398ml) diced tomatoes with Italian herbs, undrained
- 1 cup (240ml) marinara sauce (choose a well-seasoned brand)
- 3 cloves garlic, minced
- 1 teaspoon salt
- 1 teaspoon Italian seasoning
- 1/2 teaspoon dried basil
- 1/4 teaspoon black pepper
- 1/2 cup (120ml) heavy whipping cream
- 2 tablespoons cornstarch
- 2 tablespoons fresh basil, finely chopped
- Grated Parmesan cheese, for serving
Ingredients Photo: Flatlay of chicken breasts, canned tomatoes, marinara jar, garlic, herbs, cream, and basil.
Substitutions Table
Adapt the recipe to your pantry or diet with these swaps.
| Ingredient | Standard Use | Substitution Option | Notes |
|---|---|---|---|
| Chicken Breasts | 4 pieces, 2 lbs | Boneless thighs | Add 30-60 min cook time |
| Heavy Cream | 1/2 cup | Evaporated milk | Lower curdle risk than milk |
| Diced Tomatoes | 14 oz can w/ herbs | Extra 1 cup marinara | Smoother sauce, no chunks |
| Fresh Basil | 2 Tbsp chopped | 1 Tbsp basil pesto | Adds bright flavor year-round |
| Cornstarch | 2 Tbsp thickener | 2 Tbsp all-purpose flour | Whisk well to avoid lumps |
Step-by-Step Instructions
Follow these numbered steps with photos for perfect results every time. Use a 4-6 quart slow cooker.
- Prep the sauce base: Add diced tomatoes (with juice), marinara sauce, minced garlic, salt, Italian seasoning, dried basil, and black pepper to the slow cooker. Stir to combine.
Photo: Sauce ingredients mixed in cooker. - Thicken the cream: In a small bowl, whisk heavy cream and cornstarch until smooth. Pour into the slow cooker and stir well. This prevents curdling during cooking.
Photo: Cream slurry being whisked. - Add the chicken: Nestle chicken breasts into the sauce, pressing down to submerge. Cover and cook on LOW for 3-4 hours or HIGH for 2-3 hours, until chicken reaches 165°F internally.
Photo: Raw chicken added to sauce. - Finish and serve: Remove chicken, shred if desired, and return to sauce. Stir in fresh basil. Taste and adjust seasoning. Serve hot with Parmesan.
Photo: Finished creamy chicken in cooker.
Video Embed: Watch the full process [insert video placeholder].
Cook Times and Pro Tips
Cooking times vary by slow cooker and chicken size-always use a meat thermometer for safety.
- LOW setting: 3-4 hours (ideal for juiciest results).
- HIGH setting: 2-3 hours (check at 2 hours).
- Tip 1: Avoid overcooking-smaller breasts may finish in 2.5 hours.
- Tip 2: Use slow cooker liners for zero cleanup.
- Tip 3: All slow cookers differ; start checking early.
- Storage: Refrigerate up to 4 days or freeze 3 months. Reheat gently with extra cream.
Photo: Shredded chicken stirred into sauce.
Serving Suggestions
This dish shines over carbs but adapts to any meal.
- Classic: Spaghetti or penne (soaks up sauce perfectly).
- Low-carb: Zucchini noodles or cauliflower rice.
- Hearty: Mashed potatoes or white rice.
- Sides: Garlic bread, green beans, Caesar salad, or roasted veggies.
Photo: Chicken served over pasta with basil garnish.
Recipe Variations
Keep it exciting with these tweaks.
- Spicy Kick: Add 1/4 tsp red pepper flakes with seasonings.
- Veggie Boost: Stir in 2 cups spinach or diced potatoes at start.
- One-Pot Pasta: Add 8 oz uncooked pasta in last 30 minutes with extra liquid.
- Instant Pot: Saute sauce first, pressure cook 10 min high, quick release.
- Dairy-Free: Use coconut cream; skip Parmesan.
Nutrition Facts (Per Serving, 1 Chicken Breast + 1/4 Sauce)
Values approximate for 4 servings; calculated with standard ingredients.
| Nutrient | Amount | % Daily Value |
|---|---|---|
| Calories | 380 | 19% |
| Protein | 42g | 84% |
| Carbohydrates | 14g | 5% |
| Fat | 18g | 23% |
| Fiber | 2g | 7% |
| Sodium | 920mg | 40% |
Frequently Asked Questions
How do I prevent the cream from curdling?
Whisk cornstarch into cream before adding; use heavy cream or evaporated milk.
Can I use frozen chicken?
Yes, add 1-2 extra hours on LOW. Thaw for best texture.
What if I don’t have marinara sauce?
Substitute with tomato sauce + 1 tsp sugar and extra Italian seasoning.
Is this gluten-free?
Yes, use certified GF marinara and cornstarch (or arrowroot).
Can I double the recipe?
Yes, use a 6-quart cooker; increase cook time by 30-60 minutes.
What pasta pairs best?
Short shapes like penne or rigatoni hold the sauce well.
More Slow Cooker Favorites
Try these next:
- Crockpot Tuscan Chicken
- Creamy Garlic Chicken Breasts
- Italian Chicken and Potatoes
Slow Cooker Creamy Tomato Basil Chicken Breast
Tender chicken breasts in a creamy tomato basil sauce made in the slow cooker. Dump-and-go recipe with pantry staples, ready in 3-4 hours. Serve over pasta or rice for busy weeknights. Family favorite with juicy chicken and rich sauce that doesn’t curdle.
Minimal prep time and foolproof results every time!
- Prep Time: PT10M
- Cook Time: PT3H
- Total Time: PT3H10M
- Yield: 4
- Category: Dinner
- Method: Slow Cooker
- Cuisine: Italian
Ingredients
4 boneless skinless chicken breasts (about 2 lbs)
1 can (14 oz) diced tomatoes with Italian herbs, undrained
1 cup marinara sauce
3 cloves garlic, minced
1 teaspoon salt
1 teaspoon Italian seasoning
½ teaspoon dried basil
¼ teaspoon black pepper
½ cup heavy whipping cream
2 tablespoons cornstarch
2 tablespoons fresh basil, finely chopped
Grated Parmesan cheese, for serving
Instructions
1. Prep the sauce base: Add diced tomatoes (with juice), marinara sauce, minced garlic, salt, Italian seasoning, dried basil, and black pepper to the slow cooker. Stir to combine.
2. Thicken the cream: In a small bowl, whisk heavy cream and cornstarch until smooth. Pour into the slow cooker and stir well.
3. Add the chicken: Nestle chicken breasts into the sauce, pressing down to submerge. Cover and cook on LOW for 3-4 hours or HIGH for 2-3 hours, until chicken reaches 165°F.
4. Finish and serve: Remove chicken, shred if desired, and return to sauce. Stir in fresh basil. Serve with Parmesan.
Notes
Cook on LOW 3-4 hours for juiciest results. Use meat thermometer for safety.
Heavy cream + cornstarch prevents curdling.
Slow cooker liners make cleanup easy.
Freezes well up to 3 months.
Substitute thighs for breasts (add 30-60 min).
Spicy option: Add ¼ tsp red pepper flakes.
Dairy-free: Use coconut cream.
Serve over pasta, rice, or zucchini noodles.
Store refrigerated 4 days; reheat gently with extra cream.
All slow cookers vary – check early.