Slow Cooker Turkey Breast with Tuscan Broth

Set the oven to 480°. Quartered onion, three garlic cloves, oil on a baking sheet. Roast until the kitchen smells like garlic is happening. Nine to twelve minutes. Then flip. Another nine to eleven. You’ll know it’s right—golden spots, edges darkening, not burnt. That matters.

Why You’ll Love This Slow Cooker Turkey Breast

Takes a slow cooker and actually uses it well. Most turkey breast recipes are boring. This one isn’t.

The potatoes get roasted separate—crispy skin, soft inside. Not mushy like everything else in the slow cooker. Different textures in one meal.

Doesn’t need constant attention. High for an hour. Low for four. Then carrots go in. You can leave.

Tastes like Italian comfort food. Rosemary, thyme, that Tuscan broth. Not Thanksgiving dinner. Something better.

Makes its own gravy. The broth concentrates down. Rich and deep from the roasted onions and garlic doing their thing.

What You Need for Slow Cooker Turkey Breast

Turkey breast. Boneless. Two to three pounds. That’s the main thing.

One small onion. Quartered. Roast it first with three garlic cloves—that roasting step is why this works and not another dry slow cooker situation.

Celery. Two stalks, sliced. Or fennel if you want something different.

Tuscan broth. Four cups. Could be Swanson Flavor Infused or homemade chicken broth if you threw in rosemary and sage.

Baby carrots. A cup and a half. Red potatoes. Eight small ones, halved lengthwise—the long side goes down.

Parmesan. Quarter cup grated. Dried rosemary and thyme. A teaspoon each.

Olive oil. Two tablespoons split between roasting the aromatics and the potatoes.

Salt. Pepper. Non-stick spray for the slow cooker. That’s it.

How to Slow Cook Turkey Breast in a Crock Pot

Start with the oven. 480°. Line a baking sheet with foil, drizzle it with a tablespoon of olive oil. Toss the onion quarters and three peeled garlic cloves in there—spread them out loose so they roast, not steam. Nine to twelve minutes until edges brown and the smell actually hits the kitchen. That’s your signal. Pull it out. Let the garlic cool enough to peel it. Flip the onion pieces and the garlic back on and roast another nine to eleven minutes. You want caramel spots. Golden. Not burnt. Look at it instead of the clock.

While that’s roasting, spray the slow cooker pot with non-stick spray or brush it with a little oil. Lay the turkey breast flat on the bottom—pat it dry if it’s wet. Layer the roasted onions, peeled garlic, and sliced celery (or fennel) on top. Pour the broth over everything until it nearly covers the turkey.

Cover it. Set it to high.

High for one hour jumpstarts the tenderizing. After sixty minutes, flip it to low. Don’t touch it. Four hours minimum. The flesh should be tender but not falling apart, not fibrous. The broth will deepen in color and smell different—better.

How to Get Slow Cooker Turkey Breast Tender Every Time

Around the four-hour mark, the turkey’s almost there. Add the baby carrots straight into the broth around the turkey. Crank it back to high. Fifty-five to sixty-five minutes. Watch them. Tender with a little bite is the goal. Not mushy. The color tells you—vibrant orange, easily pierced with a fork. Done.

While the carrots are going, start the potatoes. Same baking sheet. Remaining tablespoon of olive oil. Halve the red potatoes lengthwise—longer side down gives more surface area for crispy edges. Toss them with the Parmesan, rosemary, thyme, salt, and pepper. Coat each one.

Oven at 395 to 400°. Cut side up first. Fourteen to sixteen minutes until the edges brown and smell nutty. Flip them. Cut side down. Another fifteen to twenty minutes. Fork tender. Crispy skin. The timing shifts depending on size—check with a fork instead of staring at the clock. The skin gets crisp. The inside stays soft. It shouldn’t fall apart.

Once everything’s done, pull the turkey and carrots out with a slotted spoon or tongs. Be gentle or it shreds. Strain the broth through a fine sieve into a saucepan. This liquid is the good stuff. Simmer it on medium heat—it concentrates. Thicker. Better. You could add a cornstarch slurry if you want it thicker still. Depends.

Let the meat rest five minutes, loosely covered. Juices settle. Texture improves.

Slow Cooker Turkey Breast Tips and Common Mistakes

The potatoes reheat best in the oven—keeps that crispy skin. Don’t use the microwave.

Carrots get mushy if you microwave the leftovers. Steam them gently instead.

Broth clouds up in storage if you don’t cool it fast enough. Nobody cares how it looks but cold broth is clearer.

If the garlic skin doesn’t peel easy, roast it longer. Not too long—burnt bits are bitter.

If the turkey’s dry, add a splash of broth or drizzle melted butter before you eat it. Shouldn’t happen if you follow the times, but it happens.

Oven temperatures vary. Convection changes things. Pan material matters. Potato size isn’t consistent. Don’t trust the clock as much as you trust what you’re seeing and smelling. That’s how this works.

You could cook the potatoes in the slow cooker with everything else. They’ll be fine. They won’t be crispy. It’s a trade-off.

Slow Cooker Turkey Breast with Tuscan Broth

By Emma

Prep:

15 min

Cook:

5h 50min

Total:

6h 5min

Servings:

4 servings

Ingredients

• 1 small onion, quartered
• 3 cloves garlic (one extra to replace one), peeled after roasting
• 2 tablespoons olive oil (divided)
• 1 turkey breast, boneless (approx 2-3 pounds)
• 2 stalks celery (substitute fennel bulb for twist), sliced
• 4 cups Tuscan style broth (Swanson Flavor Infused or homemade chicken broth with rosemary & sage)
• 1 1/2 cups baby carrots
• 8 small red potatoes, washed and halved lengthwise
• 1/4 cup grated Parmesan cheese
• 1 teaspoon dried rosemary
• 1 teaspoon dried thyme
• Salt and pepper, to taste
• Non-stick spray or a little oil for slow cooker

Method

1. 1 Preheat oven to 480°. Line small baking sheet with foil; drizzle with 1 tablespoon olive oil. Toss quartered onion and 3 garlic cloves in oil; spread out. Roast 9 to 12 minutes until edges start browning and fragrance hits the kitchen. Pull out; let garlic cool slightly then peel. Flip onion pieces and garlic; roast another 9-11 minutes until browned and caramel spots appear. Appearance key here - golden but not mushy or burnt.
2. 2 While roasting, spray slow cooker pot lightly with non-stick spray or brush with a little olive oil. Lay turkey breast flat at the bottom, pat dry if wet. Layer roasted onions, peeled garlic cloves, and sliced celery (or fennel if using) evenly on top. Pour broth carefully over all until broth nearly covers turkey pieces. Cover and set cooker on high.
3. 3 High heat for 1 hour jumpstarts cooking and tenderizing. After 60 minutes, switch to low heat. Cook undisturbed for about 4 hours. The slow simmer softens fibers; turkey flesh should be tender but intact, not fibrous dry or stringy. Broth aroma will deepen. If broth looks low, add a splash of water or chicken broth.
4. 4 Around 4 hours mark, add baby carrots directly into the broth around the turkey. Crank slow cooker back to high for 55-65 minutes. Watch carrots - want tender with a bit of bite, not mushy. Visual clue: carrots should be vibrant but easily pierced with fork.
5. 5 While carrots cook, start potatoes. Oil same baking sheet with remaining 1 tablespoon olive oil. Halve red potatoes lengthwise - longer side down gives more surface area for crispy edges. Toss potatoes with Parmesan, rosemary, thyme, salt, and pepper so each half is evenly coated.
6. 6 Place potatoes cut side up in oven at 395°-400°. Roast 14-16 minutes until edges start to brown and smell nutty. Flip cut side down once; roast another 15-20 minutes till fork tender and crusted. Timing varies with size; prick with fork to check. Potatoes are done when skin is crisp and inside soft without falling apart.
7. 7 Once turkey and carrots are cooked, remove them gently with slotted spoon or tongs to avoid shredding meat. Strain broth through fine sieve into medium saucepan. This liquid is gold—simmer down over medium heat to concentrate flavors for gravy. Adjust thickness with cornstarch or flour slurry if desired.
8. 8 Let meat rest 5 minutes loosely covered; juices redistribute and texture improves. Plate turkey, carrots, and potatoes. Spoon a little warmed gravy over turkey and serve more on the side.
9. 9 Storage tip: Cool broth quickly to avoid cloudiness if saving. Potatoes reheat best in oven to keep crisp skin. Carrots can get mushy in microwave reheats — steam gently if needed.
10. 10 Note: Oven temps and times flex due to convection, pan material, and potato sizes. Always rely on visual cues and aroma more than clock. If skin on garlic resists peeling, roast a few more minutes until it softens fully; burnt bits bring bitterness. If turkey seems dry, add a splash of broth or drizzle melted butter before serving.

Nutritional information

Calories

670

Protein

50g

Carbs

75g

Fat

19g

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Frequently Asked Questions About Slow Cooker Turkey Breast Recipe

Can I cook the potatoes in the slow cooker instead of roasting them? Yeah. They’ll cook through. Won’t be crispy. Different dish basically.

What if my slow cooker runs hot? Low might feel like medium. Check the turkey around three and a half hours instead of four. Poke it. If it’s done, it’s done.

How long does it keep in the fridge? Four days probably. Maybe five if the broth is cold fast.

Can I use frozen turkey breast? Not boneless. Bones help it cook even. Frozen solid takes longer anyway and the texture gets weird.

What about using fennel instead of celery? It works. Tastes anise-y. Not everyone loves it. It’s worth trying once.

Do I need to brown the turkey before slow cooking? No. The low heat handles everything. The roasted onions and garlic do the heavy lifting for flavor.

Can I make this in a recipe for slow cooker turkey breast without the potatoes? Obviously. Skip the potato step. The turkey and carrots and broth are fine alone. Leftover broth makes turkey sandwiches good.

Why roast the onions and garlic separately? Raw onion and garlic just sit there in slow cooker broth and taste like nothing. Roasting them makes them sweet and deep. Changes the whole dish.