Garlic Herb Slow Cooker Turkey Breast is a simple and flavorful way to enjoy tender turkey without much fuss. The turkey breast gets a lovely seasoning of garlic and fresh herbs that fill your kitchen with a wonderful aroma as it cooks slowly all day. The slow cooking method makes the meat juicy and perfect for slicing, whether for a meal or sandwiches.
I love making this turkey breast when I want a hands-off dinner that still feels special. The slow cooker does all the work while I go about my day, and by dinner time, the turkey is ready to impress. One of my favorite little tips is to let the turkey rest for a few minutes after cooking; it helps keep every bite juicy and flavorful.
Serving this turkey with some roasted veggies or your favorite side dishes makes for a comforting meal that everyone can enjoy. I also think it tastes great in leftover sandwiches the next day, especially with a little mayo or mustard. This recipe has become a go-to for me whenever I want a tasty, no-stress dinner with big flavor.
Key Ingredients & Substitutions
Turkey Breast: A boneless turkey breast is ideal here because it cooks evenly and stays juicy in the slow cooker. If you can’t find turkey breast, a boneless chicken breast can be used, though the cooking time will be shorter.
Fresh Herbs: Rosemary, thyme, and oregano add great aroma and flavor. If fresh herbs aren’t available, dried herbs work well too—just use about a third of the amount to avoid overpowering the dish.
Garlic & Olive Oil: Fresh garlic gives the best punch of flavor, but garlic powder could be a backup. Olive oil helps the herbs stick and adds a nice richness. You can swap it with avocado or vegetable oil if needed.
Chicken Broth: Liquid is important to keep the turkey moist while cooking. You can substitute turkey broth, vegetable broth, or even water with a splash of white wine for a different twist.
How Do I Make the Turkey Tender and Flavorful in the Slow Cooker?
Slow cooking turkey breast ensures it stays moist and tender, but a few simple steps really help:
- Pat the turkey dry before rubbing on the herb and garlic mixture to help the flavors stick better.
- Rub the herb mixture all over the turkey, including on the underside, for full flavor coverage.
- Pour broth around the turkey—not on top—to keep the herb rub in place and prevent it from washing off.
- Cook low and slow (4-6 hours on low) to break down fibers gently for juicy meat.
- Use a meat thermometer to check it hits 165°F (74°C) — this prevents overcooking.
- Let the turkey rest 10 minutes after cooking to let juices redistribute for juicy slices.

Equipment You’ll Need
- Slow cooker – the key to tender, hands-off cooking that keeps turkey juicy all day.
- Meat thermometer – helps you check the turkey’s internal temp for perfect doneness.
- Small bowl – for mixing the garlic and herb marinade easily.
- Tongs – handy for placing and removing the turkey breast without tearing the meat.
- Cutting board and sharp knife – to slice the turkey evenly after resting.
Flavor Variations & Add-Ins
- Swap turkey breast for boneless chicken breast for a quicker, lighter meal.
- Add lemon zest or juice to the herb rub for a fresh citrus pop that brightens the flavors.
- Include chopped mushrooms or sliced onions in the slow cooker for extra moisture and a mild savory note.
- Try smoked paprika or chili flakes for a subtle smoky or spicy twist on the original herbs.
Garlic Herb Slow Cooker Turkey Breast
Ingredients You’ll Need:
For the Turkey and Herb Rub:
- 1 (3 to 4 pounds) boneless turkey breast
- 4 cloves garlic, minced
- 2 tablespoons olive oil
- 1 tablespoon fresh rosemary, chopped (or 1 tsp dried)
- 1 tablespoon fresh thyme, chopped (or 1 tsp dried)
- 1 tablespoon fresh oregano, chopped (or 1 tsp dried)
- 1 teaspoon salt
- 1/2 teaspoon black pepper
For Cooking:
- 1/2 cup chicken broth (or turkey broth)
- Fresh herb sprigs (rosemary, thyme) for garnish
How Much Time Will You Need?
This dish requires about 10-15 minutes of prep time and then slow cooking for 4 to 6 hours on low or 2 to 3 hours on high in your slow cooker. After cooking, allow the turkey to rest for 10 minutes before slicing to keep it juicy and flavorful. That brings your total time to roughly 4 to 6 hours and 25 minutes.
Step-by-Step Instructions:
1. Prepare the Herb Garlic Marinade:
In a small bowl, mix minced garlic, olive oil, rosemary, thyme, oregano, salt, and black pepper. This will create a flavorful herb rub that will infuse the turkey with delicious taste.
2. Season the Turkey:
Pat the turkey breast dry using paper towels. Rub the garlic and herb mixture evenly all over the turkey breast, making sure you cover all sides for maximum flavor.
3. Cook in the Slow Cooker:
Place the seasoned turkey breast in your slow cooker. Pour the chicken broth around the turkey (avoid pouring directly on top so the herb rub stays put). Cover the slow cooker and cook on low for 4 to 6 hours, or on high for 2 to 3 hours, until the turkey’s internal temperature reaches 165°F (74°C).
4. Rest and Serve:
Once cooked, carefully remove the turkey breast and let it rest for 10 minutes. This resting step helps the juices redistribute so your turkey is juicy and tender. After resting, slice it evenly and arrange on a serving plate. Spoon some of the cooking juices over the slices and garnish with fresh rosemary or thyme sprigs for a beautiful presentation.
5. Enjoy Your Meal:
Serve your Garlic Herb Slow Cooker Turkey Breast warm with your favorite sides, or slice it for sandwiches the next day. It’s a simple, hearty meal with a delicious herb and garlic punch!
Can I Use Frozen Turkey Breast in the Slow Cooker?
It’s best to use fully thawed turkey breast for even cooking. If using frozen, thaw it in the refrigerator overnight before seasoning and cooking to ensure food safety and proper texture.
How Should I Store Leftovers?
Store leftover turkey breast in an airtight container in the fridge for up to 3-4 days. Reheat gently in the microwave or oven to keep the meat moist and tender.
Can I Substitute Other Herbs?
Absolutely! If you don’t have rosemary, thyme, or oregano, try using sage, parsley, or basil. Just keep the herb amount similar to maintain the flavor balance.
Is It Possible to Make This Recipe Ahead of Time?
Yes! You can prepare the herb rub and season the turkey breast a day ahead, then keep it covered in the fridge until ready to cook. Cook as directed when you’re ready, or reheat leftovers gently before serving.
