Name: Garlic Herb Slow Cooker Turkey Breast Recipe
Prep time: 30 min
Cook time: 6 h 15 min
Total time: 6 h 45 min
Cuisine: American
Ingredients: 2.5 – 3 kg / 5-6 lb single turkey breast, skin on, bone in (NOT BRINED); 1/2 tsp salt; Black pepper, to taste; 1 brown onion, halved; 1 head of garlic, halved horizontally; 3 sprigs rosemary; 8 sprigs thyme (optional); Oil, for drizzling (for crisping skin); 150 g / 10 tbsp unsalted butter, softened; 1 1/2 tsp salt; 1/2 tsp black pepper; 4 large garlic cloves, minced; 1 tbsp finely chopped fresh sage; 1 tbsp finely chopped fresh rosemary leaves; 1 tbsp finely chopped fresh thyme leaves; 1 tbsp finely chopped fresh parsley; Chicken broth/stock, for topping up if needed; 1/3 cup / 50 g flour; 1/2 tsp dark soy sauce (or gravy colouring, optional)

Jump to Recipe· 4.4 from 15 reviews

I absolutely love sharing this Garlic Herb Slow Cooker Turkey Breast Recipe with you because it brings together the comforting flavors of garlic and fresh herbs in a way that’s both irresistible and incredibly easy. I find this dish perfect when I want a hands-off, flavorful turkey that stays juicy and tender every single time. Slow cooking lets all those aromatic herbs and garlic really infuse the meat, giving it a taste that feels special but without hours of fuss in the kitchen. Trust me, once you try it, this recipe will become a go-to favorite for family dinners and celebrations alike.

Why You’ll Love This Garlic Herb Slow Cooker Turkey Breast Recipe

What really draws me to this Garlic Herb Slow Cooker Turkey Breast Recipe is the combination of deep, savory flavors and effortless cooking. The garlic-herb butter gently melts into the turkey as it slow cooks, creating this amazing layer of moisture and flavor beneath the skin. Plus, the slow cooker does all the heavy lifting, so I’m free to go about my day without worrying about overcooking or drying out the meat. The natural juices from the turkey mingle with the rosemary, thyme, and sage to create something that tastes like a home-cooked feast without the stress.

I also love how versatile this recipe is when it comes to the occasions I serve it for. Whether it’s a cozy weeknight meal or a larger holiday gathering, I know it will impress everyone at the table with minimal effort from me. The crispy broiled skin finish gives it a beautiful golden touch that elevates the dish so it looks just as good as it tastes. Honestly, it stands out because it perfectly balances convenience, depth of flavor, and a gorgeous presentation.

Ingredients You’ll Need

The image shows a large piece of cooked chicken with a textured brown and crispy skin on the top layer, filled inside with white meat. There is a layer of green herbs just under the skin, adding color contrast. Juices are dripping down the white meat, giving a fresh and moist look. The chicken is resting on a white marbled surface, and in the front, there are a few thin slices of chicken laid down, showing the smooth white inside and crisp seasoned skin on the edges. The lighting highlights the glistening juices and texture of the chicken skin. photo taken with an iphone --ar 4:5 --v 7

The ingredients here are wonderfully straightforward, yet each one plays its part in building layers of flavor and texture. Fresh herbs add that vibrant garden brightness, garlic delivers a punchy aromatic note, and butter keeps everything succulent and rich. Together with simple seasoning and careful cooking, these ingredients truly transform the turkey breast into something spectacular.

Turkey breast (5-6 lb, skin on, bone in): The star of the dish, providing a juicy, tender centerpiece with excellent flavor absorption.
Salt and black pepper: Fundamental seasoning that enhances all the natural flavors of the meat and herbs.

Brown onion (halved): Adds subtle sweetness and depths of flavor to the slow cooker juices.
Garlic (1 head, halved horizontally + 4 cloves minced): Infuses the turkey with its signature pungent, savory aroma and taste.
Fresh rosemary and thyme sprigs: Classic herbs that bring earthiness and fragrance to the dish.

Oil (for drizzling): Helps achieve that crisp, golden skin when broiling at the end.
Unsalted butter (10 tbsp, softened): Blended with garlic and herbs to create the buttery spread that bastes the turkey inside and out.
Fresh sage, rosemary, thyme, parsley (chopped): A flavorful herb mix folded into the butter for complexity and brightness.

Chicken broth/stock: Used to supplement the cooking juices when making the rich gravy.
Flour (1/3 cup): Thickens the gravy to a perfectly smooth consistency.
Dark soy sauce or gravy coloring: Adds a depth of color and a slight umami boost to the gravy.

Directions

Step 1: First, prepare the garlic herb butter by combining softened butter with minced garlic, fresh sage, rosemary leaves, thyme leaves, parsley, salt, and pepper. Give it a good mix so all those lovely herbs and garlic flavors are evenly spread.

Step 2: Next, pat the turkey breast dry really well. Using a small knife, carefully slide your hand or a spoon underneath the skin to loosen it from the flesh. This step is crucial because it lets the garlic herb butter seep right into the meat as it cooks.

Step 3: Take about two-thirds of the prepared garlic herb butter and spread it evenly underneath the loosened skin. Then spread the remaining butter over the surface and underside of the turkey breast. This double layer guarantees maximum flavor and moisture.

Step 4: Season the skin all over with salt and freshly cracked black pepper. If you have time, I love letting it rest in the fridge from overnight up to two days at this stage. This step really deepens the flavor.

Step 5: Place the halved garlic head and brown onion inside the slow cooker and position the turkey breast on top, skin side up. Scatter the fresh rosemary and thyme sprigs over the turkey to infuse even more flavor during cooking.

Step 6: Cook the turkey on low heat for about 6 hours. Be sure to check at 4 hours just to be safe. The turkey is done when the internal temperature reaches 75°C (165°F) in the thickest part of the meat.

Step 7: Once cooked, transfer the turkey to a baking tray and loosely cover it with foil. Let it rest for 20 minutes to allow the juices to redistribute, ensuring every slice is juicy and tender.

Step 8: Remove the herb sprigs from the slow cooker juices, then drizzle the turkey with a little oil (not butter) to prepare for the final crisping step. Place the turkey breast under a broiler or grill set to high, about 30 cm from the heat source, for 5 to 10 minutes. Watch closely until the skin crisps up and turns a beautiful golden brown.

Step 9: Prepare the gravy by straining the slow cooker juices into a bowl. Press the onions and garlic to extract every last drop. If you have less than 2.5 to 3 cups of liquid, top up with store-bought chicken broth.

Step 10: Let the liquid settle then skim off about 1/4 cup of fat from the surface. Pour the juices into a medium saucepan over medium heat until bubbling.

Step 11: Whisk in the flour and cook for about 1 minute to remove the raw taste. Slowly stir in all the reserved slow cooker juices, whisking continuously until the gravy is lump-free.

Step 12: Simmer the gravy for 3 to 5 minutes until it thickens nicely. Add dark soy sauce, salt, and pepper to taste. Pour into a serving jug to accompany your turkey breast.

Servings and Timing

This Garlic Herb Slow Cooker Turkey Breast Recipe comfortably serves 8 people, making it perfect for a family meal or a small gathering. Prep time takes around 15 minutes, which mostly involves mixing the butter and preparing the turkey. The slow cook time is roughly 6 hours on low, with an additional 30 minutes or so for resting and crisping the skin. In total, you’re looking at just over 6 hours 15 minutes from start to finish, but most of this time is hands-off, making it a breeze to fit into a busy day.

How to Serve This Garlic Herb Slow Cooker Turkey Breast Recipe

The dish shows two thick slices of roasted chicken with herb seasoning on top, covered with golden brown gravy that has a smooth texture and sits mostly on the upper side of the chicken. To the left of the chicken, there is a layer of yellow, crumbly cornbread with small bits of corn visible. Above the chicken and cornbread, there are bright green asparagus stems mixed with small round brown mushrooms, both garnished with chopped herbs. A lemon wedge rests on the asparagus towards the top left corner. All this food is placed on a white plate sitting on a white marbled surface. photo taken with an iphone --ar 4:5 --v 7

When I serve this turkey, I love pairing it with classic, comforting sides that let the herb and garlic flavors shine. Think creamy mashed potatoes, roasted root vegetables like carrots and parsnips, or a vibrant green vegetable such as sautéed green beans with almonds. A fresh herb salad with a citrus vinaigrette also cuts beautifully through the richness.

For presentation, I like to slice the turkey breast neatly and fan the slices out on a warm serving platter. Garnishing with fresh rosemary sprigs or a sprinkle of chopped parsley adds a lovely pop of color. The crispy, golden skin looks so inviting when placed atop the juicy slices, and serving the homemade gravy on the side lets everyone ladle as much as they like.

When it comes to drinks, a medium-bodied white wine such as Chardonnay or a soft Pinot Noir pairs beautifully with this dish’s herbal and buttery notes. If you prefer cocktails, a refreshing gin and tonic with a sprig of rosemary complements the flavors wonderfully. Non-alcoholic beverage options like sparkling water with a twist of lemon or a herbal iced tea also work perfectly. I find this meal just right served warm, and it’s a definite winner for holiday dinners, Sunday family meals, or any special occasion where you want to impress without stress.

Variations

I’ve experimented with this Garlic Herb Slow Cooker Turkey Breast Recipe in a few ways to suit different tastes and dietary needs. If fresh herbs aren’t on hand, dried herbs can work too — just reduce the quantity since dried herbs tend to be more potent. For a citrus twist, adding lemon zest or a splash of white wine to the slow cooker juices brings a bright, fresh contrast to the rich garlic butter.

For those following a gluten-free diet, replacing the flour in the gravy with a gluten-free alternative like cornstarch or rice flour works great. Just remember to mix it into a slurry with cold water before whisking it into the warm juices, so you avoid clumps. While this recipe isn’t vegan due to turkey and butter, the essence of the garlic herb butter can be recreated using plant-based spreads for a vegan roast vegetable centerpiece if you want to capture those flavors without meat.

If you’re short on time, cooking the turkey breast in a convection oven at a lower temperature with a covered pan can also be delicious, though the slow cooker really is my favorite for guaranteed tenderness. And for a smoky depth, try adding a dash of smoked paprika or chipotle powder to the garlic herb butter before spreading it under the turkey skin.

Storage and Reheating

Storing Leftovers

I always recommend storing leftover turkey breast in airtight containers or tightly wrapped in foil or cling wrap. This keeps the meat moist and flavors intact. Leftovers will keep well in the refrigerator for up to 3 to 4 days, making for perfect sandwich or salad additions as the week goes on.

Freezing

This turkey breast freezes beautifully. I portion the meat into meal-sized containers or freezer bags, removing as much air as possible to prevent freezer burn. The gravy can be frozen separately in airtight containers. Frozen cooked turkey and gravy are best used within 2 to 3 months for optimal flavor and texture. Just thaw overnight in the refrigerator before reheating.

Reheating

For reheating, I find gently warming the turkey slices in a covered dish in the oven at a low temperature (around 150°C or 300°F) keeps it from drying out. You can add a splash of broth or gravy to help retain moisture. Avoid microwaving if you can, as it tends to dry out the turkey unevenly. Reheat gravy slowly on the stovetop, whisking occasionally to bring it back to silky smooth perfection.

FAQs

Can I use turkey breast without the bone for this recipe?

Yes, you can use boneless turkey breast, but the bone-in version generally provides more moisture and flavor while slow cooking. If you use boneless, keep a close eye on the cooking time to prevent drying out, and consider adding a bit more butter or broth to keep it juicy.

Is it necessary to loosen the skin before applying the garlic herb butter?

Absolutely! Loosening the skin allows the butter mixture to seep directly into the meat, infusing it with rich herb and garlic flavors while keeping the turkey moist. If you skip this step, the flavors remain mostly on the surface rather than penetrating the breast.

Can I prepare the turkey breast a day in advance?

Definitely! Seasoning the turkey breast with the garlic herb butter and letting it rest overnight or up to two days in the fridge really deepens the flavor. This makes it perfect for prepping ahead of time and reduces last-minute rush.

How do I know when the turkey breast is fully cooked?

The best way is to use a meat thermometer inserted into the thickest part of the breast. It should read 75°C or 165°F. Cooking times can vary slightly depending on your slow cooker, so it’s worth checking a little early to avoid overcooking.

What can I serve with this turkey for a festive meal?

For a festive spread, I like serving this turkey with creamy mashed potatoes, roasted Brussels sprouts with bacon, cranberry sauce for a sweet contrast, and a rich homemade gravy. Adding a bright, fresh salad or steamed green beans keeps the plate balanced and colorful.

Conclusion

I hope you’ll give this Garlic Herb Slow Cooker Turkey Breast Recipe a try soon—it’s honestly one of my favorite ways to make turkey because it’s so full of flavor, tender, and effortlessly delicious. Whether it’s for a special occasion or just a comforting family dinner, this recipe will make you look like a kitchen pro without all the fuss. Enjoy every juicy, aromatic bite!