There are evenings when the house feels loud even when it is quiet, and I want dinner to be the one thing that asks nothing of me. This Slow Cooker Creamy Tomato Basil Chicken is that kind of meal. You set it going in the morning, and by evening the kitchen smells like simmered tomatoes and sweet basil, like someone has been tending a pot all day when really it was just you and a slow cooker.
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I started making this on the weeks when my calendar was fuller than my energy. Chicken breasts go in whole, they come out shreddable and soft, and the sauce turns glossy and pink from the cream and the tomatoes. It is the sort of dish you can serve over pasta, spoon over rice, or eat straight from a bowl with a piece of bread for dipping.
Before you start, take one slow breath in through your nose and let it out through your mouth. Cooking does not have to be rushed to be good. Sometimes the kindest thing you can do for yourself is let the pot do the work. Be kind to your mind.
Why You'll Love This Recipe
About the Ingredients
2 lbs (900g) boneless, skinless chicken breasts
Buy breasts of similar thickness so they cook evenly; you can swap in boneless thighs for an even juicier result, just add 30 minutes to the cook time.
1 can (28 oz / 794g) crushed tomatoes
Crushed tomatoes give the sauce body without extra chopping; fire-roasted crushed tomatoes add a subtle smoky note if you like.
1 can (14.5 oz / 411g) diced tomatoes, drained
Draining keeps the sauce from turning watery; petite diced tomatoes have a finer texture that blends better.
1 medium yellow onion, finely diced (about 1 cup)
Yellow onion melts into sweetness; a shallot or half a red onion works if that is what you have.
4 cloves garlic, minced
Fresh garlic is worth it here; 1 teaspoon garlic powder can stand in if you are out.
1/2 cup (120ml) heavy cream
Add it at the very end so it does not curdle; half-and-half or full-fat coconut milk both work as substitutes.
1/2 cup (50g) grated Parmesan cheese
Freshly grated melts smoother than pre-shredded; Pecorino Romano is a sharper swap.
1/4 cup (10g) fresh basil, chopped, plus more for serving
Stir most in at the end and save a few leaves to scatter on top; 1 teaspoon dried basil can replace it in a pinch.
1 teaspoon dried oregano
Rubbing it between your palms wakes up the oils; Italian seasoning is a fine substitute.
1 teaspoon kosher salt, plus more to taste
Kosher salt seasons more gently than table salt; if using table salt, start with 3/4 teaspoon.
1/2 teaspoon black pepper
Freshly cracked pepper tastes brighter; white pepper keeps the sauce smooth-looking.
2 tablespoons cornstarch whisked with 2 tablespoons cold water
This slurry thickens the sauce at the end; arrowroot or a butter-and-flour roux also work.
Tips & Tricks
Do not skip browning the chicken
A quick sear in a hot skillet before it goes in the slow cooker builds flavor and keeps the meat from tasting boiled.
Add the cream at the end
Cream can separate over hours of heat, so stir it in after the cooker is switched off for a smooth, stable sauce.
Watch the liquid level
Slow cookers trap moisture, so if your sauce looks thin, leave the lid off on high for 20 to 30 minutes to let it reduce.
Shred, do not chop
Pulling the chicken apart with two forks lets the sauce soak into every strand instead of sitting on top.
Pro Tips
Step-by-Step Instructions
1. Season the chicken
Pat the chicken breasts dry with paper towels and season both sides with the kosher salt and black pepper. Drying the surface helps it brown rather than steam.
2. Sear until golden
Heat 1 tablespoon olive oil in a large skillet over medium-high heat, about 375F (190C). Sear the chicken 3 to 4 minutes per side until golden brown and the internal temperature reaches 165F (74C) at the thickest part, then set aside. The chicken will finish cooking in the slow cooker, so a light sear is all you need.
3. Build the base
Scatter the diced onion and minced garlic across the bottom of the slow cooker, then pour in the crushed tomatoes, drained diced tomatoes, and dried oregano. Stir to combine so the aromatics sit under the chicken.
4. Nestle and cook
Lay the seared chicken on top of the tomato mixture, cover, and cook on low for 5 to 6 hours or on high for 3 hours. The chicken is done when it shreds easily with a fork and the sauce is bubbling at the edges.
5. Shred the chicken
Transfer the chicken to a cutting board and shred it with two forks. Return the shredded chicken to the slow cooker and stir it into the sauce.
6. Thicken the sauce
Whisk the cornstarch with the cold water until smooth, then stir the slurry into the sauce. Cover and cook on high for 10 to 15 minutes until the sauce thickens enough to coat the back of a spoon.
7. Finish with cream and basil
Turn the slow cooker off and stir in the heavy cream, Parmesan, and most of the basil. Taste and add salt if needed, then let it sit 5 minutes so the flavors settle.
8. Serve warm
Spoon over pasta, rice, or mashed potatoes and scatter the remaining basil on top. Serve while the sauce is glossy and steaming.
Delicious Variations
Spicy Arrabbiata
Add 1/2 teaspoon red pepper flakes with the garlic and finish with a pinch of smoked paprika for heat.
Mushroom and Spinach
Stir 2 cups baby spinach and 8 oz sauteed mushrooms in during the last 15 minutes for a vegetable-forward version.
Coconut Basil
Swap the heavy cream for full-fat coconut milk and the Parmesan for nutritional yeast to make it dairy-free.
How to Store Slow Cooker Creamy Tomato Basil Chicken Recipe
Refrigerator
Store in an airtight container in the refrigerator for up to 4 days. The sauce thickens as it chills, so loosen it with a splash of broth or water when reheating.
Freezer
Freeze in a freezer-safe container for up to 3 months. Thaw overnight in the refrigerator before reheating for the best texture.
Reheating
Reheat gently on the stovetop over low heat or in the microwave in 30-second bursts, stirring between each, until steaming but not boiling so the cream stays smooth.
Frequently Asked Questions
Q: Can I put frozen chicken in the slow cooker for this recipe?
Yes, you can use frozen chicken breasts, but you should add 1 to 2 hours to the cook time and skip the searing step since frozen meat will not brown. Check that the internal temperature reaches 165F (74C) before shredding.
Q: Why did my creamy tomato sauce curdle?
The cream most often curdles when it is added too early or boiled hard, so stir it in after you turn the slow cooker off. Letting the sauce cool for a minute before adding cold cream also helps it blend smoothly.
Q: Can I make this Slow Cooker Creamy Tomato Basil Chicken dairy-free?
Yes, replace the heavy cream with full-fat coconut milk and the Parmesan with nutritional yeast or a dairy-free Parmesan alternative. The sauce will be slightly less thick, so you may want a little extra cornstarch slurry.
Q: How do I keep the sauce from getting watery?
Drain the diced tomatoes well, keep the lid on during cooking so moisture does not escape and then re-condense, and finish with a cornstarch slurry. If it still looks thin, cook uncovered on high for 20 to 30 minutes.
Q: What should I serve with creamy tomato basil chicken?
It is wonderful over pasta, white rice, mashed potatoes, or polenta, and a piece of crusty bread is perfect for sopping up the sauce. A simple green salad on the side balances the richness.
Make this Slow Cooker Creamy Tomato Basil Chicken on a day when you need dinner to be gentle with you, and let the smell of basil and tomatoes fill the house while you rest. If you try it, I would love to hear how your family liked it. Be kind to your mind.
Slow Cooker Creamy Tomato Basil Chicken Recipe
Slow Cooker Creamy Tomato Basil Chicken is a hands-off dinner of tender chicken in a silky tomato-basil cream sauce, ready when you walk in.
🧂 Ingredients
- 2 lbs (900g) boneless, skinless chicken breasts
- 1 can (28 oz / 794g) crushed tomatoes
- 1 can (14.5 oz / 411g) diced tomatoes, drained
- 1 medium yellow onion, finely diced (about 1 cup)
- 4 cloves garlic, minced
- 1/2 cup (120ml) heavy cream
- 1/2 cup (50g) grated Parmesan cheese
- 1/4 cup (10g) fresh basil, chopped, plus more for serving
- 1 teaspoon dried oregano
- 1 teaspoon kosher salt, plus more to taste
- 1/2 teaspoon black pepper
- 2 tablespoons cornstarch whisked with 2 tablespoons cold water
📋 Instructions
- 1Season the chicken — Pat the chicken breasts dry with paper towels and season both sides with the kosher salt and black pepper. Drying the surface helps it brown rather than steam.
- 2Sear until golden — Heat 1 tablespoon olive oil in a large skillet over medium-high heat, about 375F (190C). Sear the chicken 3 to 4 minutes per side until golden brown and the internal temperature reaches 165F (74C) at the thickest part, then set aside. The chicken will finish cooking in the slow cooker, so a light sear is all you need.
- 3Build the base — Scatter the diced onion and minced garlic across the bottom of the slow cooker, then pour in the crushed tomatoes, drained diced tomatoes, and dried oregano. Stir to combine so the aromatics sit under the chicken.
- 4Nestle and cook — Lay the seared chicken on top of the tomato mixture, cover, and cook on low for 5 to 6 hours or on high for 3 hours. The chicken is done when it shreds easily with a fork and the sauce is bubbling at the edges.
- 5Shred the chicken — Transfer the chicken to a cutting board and shred it with two forks. Return the shredded chicken to the slow cooker and stir it into the sauce.
- 6Thicken the sauce — Whisk the cornstarch with the cold water until smooth, then stir the slurry into the sauce. Cover and cook on high for 10 to 15 minutes until the sauce thickens enough to coat the back of a spoon.
- 7Finish with cream and basil — Turn the slow cooker off and stir in the heavy cream, Parmesan, and most of the basil. Taste and add salt if needed, then let it sit 5 minutes so the flavors settle.
- 8Serve warm — Spoon over pasta, rice, or mashed potatoes and scatter the remaining basil on top. Serve while the sauce is glossy and steaming.
