I love how this garlic butter turkey tenderloin turns a few simple ingredients into a cozy Thanksgiving dinner. Tender turkey and caramelized sweet potatoes roast together on one pan, so the meal feels special without keeping me in the kitchen all day.
Why You’ll Love This Garlic Butter Turkey Tenderloin
This recipe brings savory garlic butter, juicy turkey, and naturally sweet potatoes together in every serving. The ingredients are easy to find, the oven does most of the work, and cleanup is simple. It’s a lovely choice for a smaller Thanksgiving gathering or an easy autumn dinner.
Garlic Butter Turkey Tenderloin Ingredients & Substitutions
- 1 1/2 pounds turkey tenderloin, patted dry
- 1 1/2 pounds sweet potatoes, peeled if desired and cut into 3/4-inch cubes
- 3 tablespoons unsalted butter, melted
- 3 garlic cloves, finely minced
- 1 tablespoon olive oil
- 1 teaspoon dried thyme
- 1/2 teaspoon dried rosemary, crushed
- 1 teaspoon kosher salt, plus more to taste
- 1/2 teaspoon black pepper
- 1 tablespoon chopped fresh parsley, for serving
Olive oil can replace the butter, though the flavor will be less rich. You can use peeled Yukon Gold potatoes in place of sweet potatoes, or add a pinch of smoked paprika for a deeper, savory note.
Step-by-Step Instructions to Make Garlic Butter Turkey Tenderloin
1. Heat the oven and prepare the pan
Heat the oven to 400°F (200°C). Line a large rimmed baking sheet with parchment paper or lightly oil it. Pat the turkey dry so the garlic butter coats it evenly.
2. Give the sweet potatoes a head start
Toss the sweet potato cubes with the olive oil, half of the salt, and a little black pepper. Spread them in a single layer and roast for 15 minutes. Starting them first helps the potatoes become tender by the time the turkey is cooked.
3. Make the garlic butter
Stir the melted butter, minced garlic, thyme, rosemary, remaining salt, and black pepper together in a small bowl. Brush the mixture over the turkey tenderloin.
4. Roast the turkey and potatoes
Move the sweet potatoes toward the edges of the pan and place the turkey in the center. Roast for 22 to 30 minutes, turning the sweet potatoes once, until the thickest part of the turkey reaches 165°F (74°C) on an instant-read thermometer. Cooking time can vary with the thickness of the tenderloin.
5. Rest, slice, and serve
Transfer the turkey to a cutting board and let it rest for 5 to 10 minutes. Slice across the grain, spoon any pan juices over the top, and serve with the sweet potatoes and chopped parsley.
Tips for Success
- Cut the sweet potatoes into similar-sized pieces so they roast evenly.
- Use an instant-read thermometer rather than relying only on the clock. Turkey is ready when its thickest section reaches 165°F (74°C).
- Give the turkey a few minutes to rest before slicing. This helps keep the meat juicy.
- If the tenderloin is especially thick, it may need a little more oven time. Check the temperature near the end of the estimated roasting window.
- Spread everything out on the pan. Crowding can cause the potatoes to steam instead of brown.
Variations of Garlic Butter Turkey Tenderloin
For a brighter flavor, add a teaspoon of lemon zest to the garlic butter. A pinch of smoked paprika or a little extra rosemary gives the dish a more autumnal feel. You can also add chunks of onion or halved Brussels sprouts to the pan, keeping the pieces similar in size so they cook evenly.
Serving Suggestions: What to Pair with Garlic Butter Turkey Tenderloin
For a Thanksgiving-inspired spread, serve this turkey with green beans, a crisp salad, cranberry sauce, or warm dinner rolls. For a simpler weeknight plate, pair it with steamed greens or a bowl of soup. The roasted sweet potatoes bring a satisfying side of their own.
Storage & Reheating Instructions
Refrigerate leftover turkey and sweet potatoes in an airtight container for up to 3 days. Reheat covered in a 325°F (165°C) oven until warmed through, or microwave individual portions in short intervals. Add a spoonful of broth or water before reheating if the turkey seems dry. You can also freeze the cooked turkey in an airtight container for up to 2 months; the sweet potatoes may soften after thawing.
Memories Made Around the Table
I like serving this meal when I want the table to feel festive but relaxed. The sweet, garlicky aroma drifting from the oven always draws everyone into the kitchen, and slicing the tenderloin at the table makes a simple dinner feel like a small celebration. It’s the kind of recipe I’m happy to bring back whenever the weather turns cool.
FAQs
Can I prepare the turkey tenderloin ahead of time?
Yes. Mix the garlic butter and coat the turkey up to a day ahead, then cover and refrigerate it. For the best texture, keep the sweet potatoes uncut until closer to roasting, or store them cut in cold water and dry them well before seasoning.
How do I know when turkey tenderloin is done?
Check the thickest part with an instant-read thermometer. The turkey is ready when it reaches 165°F (74°C). Let it rest before slicing.
Can I use regular potatoes instead of sweet potatoes?
Yes. Yukon Gold or red potatoes work well. Cut them into small, even cubes and give them the same 15-minute head start so they have time to become tender.
Can I make this recipe with turkey breast?
You can use a boneless turkey breast, but it may need a longer cooking time depending on its size and thickness. Use a thermometer and cook until the center reaches 165°F (74°C).
Final Thoughts
This garlic butter turkey tenderloin is a straightforward way to bring Thanksgiving flavor to the table without preparing a whole bird. With juicy turkey, golden sweet potatoes, and one-pan cleanup, it’s a comforting meal worth making all season long.
Garlic Butter Turkey
Equipment
- 1 Rimmed baking sheet
- 1 Small bowl
- 1 Instant-read thermometer
Ingredients
Turkey and Sweet Potatoes
- 1.5 pounds turkey tenderloin patted dry
- 1.5 pounds sweet potatoes peeled if desired and cut into 3/4-inch cubes
- 3 tablespoons unsalted butter melted
- 3 cloves garlic finely minced
- 1 tablespoon olive oil
- 1 teaspoon dried thyme
- 0.5 teaspoon dried rosemary crushed
- 1 teaspoon kosher salt plus more to taste
- 0.5 teaspoon black pepper
- 1 tablespoon fresh parsley chopped, for serving
Instructions
- Heat the oven to 400°F (200°C). Line a large rimmed baking sheet with parchment paper or lightly oil it. Pat the turkey dry.
- Toss the sweet potato cubes with the olive oil, half of the salt, and a little black pepper. Spread in a single layer and roast for 15 minutes.
- Stir the melted butter, minced garlic, thyme, rosemary, remaining salt, and black pepper together in a small bowl. Brush the mixture over the turkey tenderloin.
- Move the sweet potatoes toward the edges of the pan and place the turkey in the center. Roast for 22 to 30 minutes, turning the sweet potatoes once, until the thickest part of the turkey reaches 165°F (74°C) on an instant-read thermometer.
- Transfer the turkey to a cutting board and let it rest for 5 to 10 minutes. Slice across the grain, spoon any pan juices over the top, and serve with the sweet potatoes and chopped parsley.