Why Slow Cooker Boneless Turkey Breast Works
The butter melts into every bit of meat while it cooks. You get that herb-crusted flavor without standing over the stove.
I’ve served this at church potlucks, sliced it thin for sandwiches all week, and even brought leftovers to the ER break room (gone in 20 minutes).
✅ Set before work, dinner’s ready when you’re home
✅ Poultry seasoning and garlic powder do the work
✅ Perfect for meal prep or Sunday dinner
✅ Boneless turkey breast Crock Pot cooking time is only 6 hours
✅ Stays moist without constant basting
The 6-quart Slow Cooker is big enough for the whole breast without cramming
What Goes Into Slow Cooker Boneless Turkey Breast
Slow Cooker boneless turkey breast needs just a few things, and honestly, the butter is doing most of the heavy lifting here. That’s not a complaint.
✔ Boneless turkey breast : about 3 pounds, sometimes comes tied with string (leave it on if it does)
✔ Softened butter : 4 tablespoons, this is what keeps everything juicy
✔ Yellow onion : sliced thick, creates a bed for the turkey and adds flavor to the bottom
✔ Poultry seasoning blend : dried herbs like oregano, thyme, and a bit of paprika (you can use fresh if you’ve got it)
The beauty here? You can adjust the herbs, add a salt brine overnight if you’re thinking ahead, or just go simple with what’s already in your pantry.
How to Make Boneless Turkey Breast in Your Slow Cooker
Making Slow Cooker boneless turkey breast is about as hands-off as it gets. You’re seasoning, layering, and walking away for six hours.
- No basting. No flipping. No stress.
- Layer the sliced onion rounds on the bottom of your 6-quart Slow Cooker
- Rub the softened butter all over the turkey breast
- Mix your dried herbs with the salt and pepper
- Coat the turkey completely with the herb mixture
- Place the turkey on top of the onions
- Set your Slow Cooker to LOW for 6 hours (per boneless turkey breast in Crock Pot timing)
Check with a probe thermometer for 165°F internal temp before serving
By the time it’s done, the turkey should be tender enough to slice clean but still hold together. And if you’re wondering about searing in a skillet or a broiler finish for color, I’ll get to that in a sec.
Slow Cooker Boneless Turkey Breast Variations
Should I brine a boneless turkey breast overnight? If you’ve got the time, yeah. A simple salt brine keeps it even juicier, especially if your turkey’s on the lean side. I tested this step while developing the recipe, and honestly, the difference was noticeable. Just dissolve a quarter cup of kosher salt in water, submerge the turkey, and refrigerate overnight.
Boneless vs bone-in turkey breast in Slow Cooker is a real thing people ask about. Bone-in takes longer and cooks less evenly in the Crock Pot; turkey tenderloin Crock Pot cooks faster. Boneless fits better, cooks in 6 hours, and slices way easier. I’m team boneless all the way for weeknight cooking.
Can you brown turkey breast after slow cooking? Absolutely. If you want that golden look, pop it under the broiler for 3 to 5 minutes after it’s done. Rachel does this every time we have company because it looks more “finished.” I don’t always bother, but when I do, it’s worth it.
The olive oil rub instead of butter works if you’re watching dairy. Just brush it on before the seasoning. You lose a little richness, but the herbs still carry the flavor through.
What to Serve with Slow Cooker Boneless Turkey
At home, we always serve it with mashed potatoes or crock pot candied yams. Noah will eat pretty much anything if there’s mashed potatoes involved, and the turkey juices mixed into them? Kind of unbeatable.
Roasted Brussels sprouts with a little balsamic glaze balance out the richness of the butter. Chloe picks around them, but Bennett surprisingly loves them (toddlers are weird).
Cranberry sauce is non-negotiable for Rachel. She makes the jellied kind from a can because that’s what she grew up with, and I’m not about to argue with tradition.
Stuffing on the side makes it feel like a real holiday meal without the full production. I usually grab the boxed kind from King Soopers and doctor it up with extra celery and onions.
Green beans are the default vegetable when I’m too tired to think. Steam them, toss with butter and garlic, done.
Honestly, if you’ve got good turkey, the sides almost don’t matter.
Nailing the Temp and Resting Time
Getting Slow Cooker boneless turkey breast right is all about that 165°F internal temp. You need a probe thermometer for this, no guessing.
Low and slow on your Crock Pot setting keeps the meat from drying out. Six hours on LOW is the sweet spot for a 3-pound breast. If you go HIGH for 3 hours, it works, but the texture isn’t as tender.
You’ll know it’s done when the meat pulls apart easily with a fork but still slices clean. The juices should run clear, not pink.
Why is my boneless turkey breast dry? Probably cooked too long or the temp was too high. Turkey breast has almost no fat, so it needs that butter rub and the moisture from the onions underneath. Also, don’t skip the resting time after it’s done, at least 10 minutes before slicing.
One time I forgot to check the temp and just assumed 6 hours was enough. It was at 155°F. I gave it another 30 minutes, and it hit 165°F perfectly. Now I always double-check.
Keeping Your Turkey Breast Fresh
The first time I made Slow Cooker boneless turkey breast, I assumed we’d finish it in two days. We did not. But it reheats so well that I started making it on purpose for meal prep.
Storage
- At room temperature: Don’t leave it out longer than 2 hours, especially with the butter
- In the fridge: Slice it first, store in an airtight container, lasts 4 days
- In the freezer: Wrap slices individually in plastic wrap, then foil, good for 3 months
Reheating
The best way to reheat this is in the oven at 325°F with a splash of chicken broth to keep it moist. Microwave works in a pinch, but use 50% power and cover it with a damp paper towel. Stovetop in a skillet with a little butter brings back that fresh-cooked flavor.
Anti-waste tip
Leftover turkey makes killer soup. Shred it, toss it in a pot with chicken broth, carrots, celery, and egg noodles. We’ve done this at least a dozen times, and it’s better than the original meal.
Got questions about cooking turkey in the Crock Pot? I’ve got you
Slow Cooker Boneless Turkey Breast: Full Recipe
This Slow Cooker boneless turkey breast recipe is what I make when I need real food but don’t have the energy to babysit the oven. The butter keeps it juicy, the herbs give it that roasted flavor, and the Crock Pot does all the work while you’re doing literally anything else.

Slow Cooker Boneless Turkey Breast
Equipment
- 6-quart slow cooker
- probe thermometer
- Small mixing bowl
Ingredients
- 3 pounds boneless turkey breast leave the string if it’s tied
- 4 tablespoons softened butter
- 1 large yellow onion sliced into ½-inch rounds
- 2 teaspoons kosher salt
- ½ teaspoons black pepper
- 1 teaspoon garlic powder
- 1 teaspoon dried oregano or 1 tablespoon fresh
- 1 teaspoon dried thyme or 1 tablespoon fresh
- 1 teaspoon paprika
- ½ teaspoon turmeric optional
Instructions
- Arrange the onion slices flat on the bottom of your 6-quart Slow Cooker
- Rub the softened butter all over the turkey breast, covering every side
- In a small bowl, mix the salt, pepper, garlic powder, oregano, thyme, paprika, and turmeric
- Press the herb mixture onto the turkey, coating it completely
- Place the turkey on top of the onions in the Slow Cooker
- Cover and set to LOW for 6 hours
- Check the internal temp with a probe thermometer, it should hit 165°F
- Let the turkey rest for 10 minutes before slicing
Notes
- If you want a golden crust, pop the turkey under the broiler for 3 to 5 minutes after it’s done in the Crock Pot.
- How much liquid for boneless turkey breast? You don’t need any, the onions and butter create enough moisture.
- If your turkey came with string tied around it, leave it on during cooking to help it hold its shape.
Questions About Slow Cooker Boneless Turkey Breast
Making Slow Cooker Boneless Turkey Breast some questions for me the first few times. The pasta texture thing confused me until I figured out the timing.
Boneless turkey breast Crock Pot cooking time on LOW?
Cook on LOW for 6 hours for a 3-pound breast. Always check with a probe thermometer for 165°F internal temp before serving.
Why is my boneless turkey breast dry in the Slow Cooker?
Happened to me too. Either it cooked too long or the butter rub wasn’t thick enough. Use softened butter and don’t skip the resting time after cooking.
Should I brine a boneless turkey breast overnight before slow cooking?
You can, and it helps with moisture. Dissolve a quarter cup of kosher salt in water, submerge the turkey, and refrigerate overnight.
Can you brown turkey breast after slow cooking?
Yes, pop it under the broiler for 3 to 5 minutes. It adds color and a bit of texture without drying it out.
Share Your Slow Cooker Turkey 📣
If you made this Slow Cooker boneless turkey breast, you know how good it smells. Drop a rating below and let me know how it turned out.
Snap a photo and tag it with #SlowCookComfort and @SlowCookComfort so I can see your version. I love seeing what you did with it, especially if you added your own spin.
And if you’ve got questions or tried a variation, leave a comment. I read all of them, usually while prepping Sunday dinner with the kids running around.






