Slow Cooker Pork Tenderloin Recipe

Tender, juicy slow cooker pork tenderloin takes just minutes to prep and delivers incredible flavor with a simple spice rub and rich gravy. This easy crock pot recipe ensures perfect results every time, reaching the safe 145°F internal temperature without drying out. Serve it with mashed potatoes or rice for a family favorite dinner ready in 2-3 hours.

Why Choose Slow Cooker Pork Tenderloin

Pork tenderloin cooks quickly in the slow cooker, staying moist thanks to low, gentle heat and flavorful liquids. This lean cut differs from thicker pork loin – it’s long, narrow, and about 1 pound each, perfect for weeknight meals. The spice rub infuses savory notes while the gravy adds richness, making every bite satisfying.​

A hybrid approach combines popular seasonings for maximum taste: garlic, paprika, and brown sugar create caramelized edges, with optional onions for depth. Readers love the no-fuss method and versatile leftovers.

Ingredients

For 4-6 servings (2 pounds total):

• 2 pork tenderloins (about 1 pound each)
• 1 tablespoon olive oil (for optional searing)
• 1 large onion, thinly sliced
• 1 cup low-sodium beef broth
• 4 tablespoons salted butter, cut into pats
• 2 tablespoons brown sugar
• 1 teaspoon garlic powder
• 1 teaspoon smoked paprika
• 1 teaspoon onion powder
• 1 teaspoon chili powder
• 1 teaspoon dried Italian seasoning or thyme
• 1 teaspoon kosher salt
• 1/2 teaspoon black pepper
• Optional gravy thickener: 1 tablespoon cornstarch + 1 tablespoon water

Nutrition per serving (1/6th, approx.): 320 calories, 12g fat, 40g protein, 5g carbs (estimates vary by brands).​

Step-by-Step Instructions

1. Prep the pork: Pat tenderloins dry with paper towels. Trim silver skin (tough membrane) with a sharp knife for tenderness. Mix brown sugar, garlic powder, smoked paprika, onion powder, chili powder, Italian seasoning, salt, and pepper in a bowl. Rub evenly over all sides.​
2. Layer the slow cooker: Add sliced onions to the bottom of a 6-quart slow cooker. This creates a flavorful base. Place rubbed tenderloins on top.
3. Optional sear for flavor: Heat olive oil in a skillet over medium-high. Sear each tenderloin 1-2 minutes per side until golden. Transfer to slow cooker. Skip for truly hands-off prep.​
4. Add liquids and cook: Pour beef broth around the pork. Top with butter pats. Cover and cook on low for 2-2.5 hours or high for 1.5-2 hours. Check internal temperature with a meat thermometer – remove at 145°F for juicy results. Rest 10 minutes tented with foil.​
5. Make gravy: Strain juices into a saucepan. Whisk cornstarch slurry into juices; simmer until thickened, 2-3 minutes. Slice pork and serve with gravy.

Pro tip: Slow cookers vary, so test early to avoid overcooking. Your kitchen will smell amazing!​

Expert Tips for Perfect Results

Use an instant-read thermometer every time – pork is safe and pink at 145°F after resting. For low-carb, skip sugar in rub and pair with zucchini noodles. Add quick-cook veggies like green beans in the last 30 minutes; avoid potatoes unless pre-boiled.​

Resting redistributes juices for sliceable tenderness. Double the rub for bolder flavor or add 1/2 teaspoon cumin for smokiness. Freezer prep: Rub pork, bag with onions/broth, thaw overnight before cooking.​

Serving Suggestions

Slice thin and spoon gravy over creamy mashed potatoes, rice, or crusty bread. Pair with roasted green beans, simple salad, or fried apples for classic pork harmony. For meal prep, shred leftovers into wraps or bowls.​

Storage and Reheating

Refrigerate in an airtight container up to 4 days. Freeze slices in gravy up to 3 months – thaw overnight in fridge. Reheat gently on stovetop with extra broth or microwave in 30-second bursts to prevent toughness.​

Nutrition and Variations

Serving	Calories	Protein	Fat	Carbs
1 slice (4oz)	320	40g	12g	5g ​

Variations:

• Honey balsamic: Swap broth for 1/2 cup with 2 tbsp honey + 2 tbsp balsamic.
• BBQ style: Use 1 cup BBQ sauce instead of broth.
• Keto: Omit sugar, use broth + butter only.​

Frequently Asked Questions

How long does pork tenderloin take in the slow cooker? 2-2.5 hours on low for 1-pound cuts; always use a thermometer.​

Do I need liquid in the slow cooker? Yes, broth prevents drying; butter adds richness.​

Pork loin vs. tenderloin? Tenderloin is leaner, smaller, cooks faster – don’t swap.​

Can I overcook it? Yes, beyond 160°F it dries out. Check at minimum time.​

Vegetables with pork? Quick-cook like peppers or broccoli; add late.​

This recipe delivers foolproof, crowd-pleasing results with pantry staples and minimal effort.​

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