Keto Pork Tenderloin with Garlic Butter is a rich, satisfying, and elegant low-carb dinner that feels restaurant-quality while being surprisingly easy to prepare at home. Pork tenderloin is one of the leanest and most tender cuts of pork, making it an excellent protein choice for keto and low-carb diets when paired with healthy fats like butter and olive oil. When seared to golden perfection and finished with a luxurious garlic butter sauce, this dish delivers incredible flavor without unnecessary carbs.
This recipe is perfect for weeknight dinners, meal prep, or even special occasions when you want something impressive but simple. The garlic butter infuses the pork with deep savory notes, while herbs elevate the dish to a gourmet level. Best of all, it pairs beautifully with keto-friendly sides such as roasted asparagus, cauliflower mash, or zucchini noodles.
If you’re looking for a low-carb, keto-approved pork recipe that is juicy, flavorful, and easy to master, this Keto Pork Tenderloin with Garlic Butter will quickly become a staple in your meal rotation.
Ingredients
Equipment
Method
- Remove the pork tenderloin from the refrigerator 15–20 minutes before cooking to allow it to come to room temperature.
- Pat the pork dry with paper towels to ensure proper searing.
- Rub the tenderloin with olive oil.
- Season evenly with salt, black pepper, paprika, garlic powder, and dried thyme.
- Heat a large skillet or cast-iron pan over medium-high heat.
- Once hot, add a small amount of olive oil.
- Place the pork tenderloin in the pan and sear for 2–3 minutes per side, turning with tongs, until a golden-brown crust forms on all sides.
- Reduce heat to medium-low.
- Cover the pan loosely with foil and continue cooking for 10–15 minutes, turning occasionally.
- Use a meat thermometer to check doneness—internal temperature should reach 145°F (63°C).
- Reduce heat to low.
- Add butter to the pan.
- Once melted, add minced garlic and stir gently for 30–60 seconds until fragrant (do not burn).
- Stir in fresh herbs and lemon juice if using.
- Spoon the garlic butter over the pork continuously for 1–2 minutes.
- Remove pork from heat and let it rest, tented with foil, for 5 minutes.
- Slice into medallions and drizzle with extra garlic butter sauce before serving.
Notes
Nutritional Facts (Per Serving)
- Calories: 360 kcal
- Protein: 34 g
- Fat: 24 g
- Carbohydrates: 1.5 g
- Fiber: 0 g
- Net Carbs: 1.5 g
Keto Pork Tenderloin with Garlic Butter
Ingredient Notes
Pork Tenderloin
Pork tenderloin is a lean, tender cut that cooks quickly and stays juicy when prepared properly. It’s naturally low in carbs and high in protein, making it ideal for keto diets. Avoid confusing it with pork loin, which is larger and requires longer cooking.
Olive Oil
Used for searing, olive oil provides healthy fats and helps create a golden crust on the pork. You can substitute avocado oil if preferred.
Butter
Butter is the heart of this recipe, adding richness and moisture. Unsalted butter is recommended so you can control the salt level precisely.
Garlic
Fresh garlic gives the sauce its bold flavor. Minced garlic infuses the butter deeply and pairs perfectly with pork.
Herbs (Thyme, Rosemary, Parsley)
These herbs add aroma and depth. Fresh herbs are ideal, but dried can be used if necessary (use half the amount).
Paprika
Adds mild smokiness and color to the pork without adding heat.
Lemon Juice (Optional)
A small amount brightens the dish and balances the richness of the butter while remaining keto-friendly.
Serving Instructions
- Serve sliced pork tenderloin drizzled generously with garlic butter.
- Pair with keto-friendly sides such as
- Roasted broccoli or asparagus
- Cauliflower mash
- Zucchini noodles
- Garlic sautéed spinach
- Garnish with fresh parsley for a vibrant finish.
- Best served hot, straight from the skillet.
Tips
- Do not overcook pork tenderloin—overcooking leads to dryness.
- Use a meat thermometer for perfect results every time.
- Let the meat rest before slicing to retain juices.
- Add chili flakes for a spicy kick.
- For extra richness, stir in 1 tbsp heavy cream to the garlic butter sauce.
Storage Information
- Refrigerator: Store leftovers in an airtight container for up to 4 days.
- Freezer: Freeze sliced pork with sauce in a freezer-safe container for up to 2 months.
- Reheating: Reheat gently in a skillet over low heat or microwave in short intervals to avoid drying out.
FAQs
1. Is pork tenderloin keto-friendly?
Yes, pork tenderloin is naturally low in carbs and high in protein, making it ideal for keto diets.
2. Can I cook this in the oven instead?
Absolutely. After searing, transfer to a 400°F (200°C) oven and roast for 15–20 minutes.
3. Can I use garlic powder instead of fresh garlic?
Fresh garlic is recommended for best flavor, but garlic powder can be used in a pinch.
4. What internal temperature is safe for pork?
Pork is safe to eat at 145°F (63°C) with a 3-minute rest.
5. Can I meal prep this recipe?
Yes. It stores well and reheats nicely, making it excellent for keto meal prep.
6. What butter works best?
Unsalted butter gives better control over seasoning, but salted butter works if you adjust salt accordingly.
