01 -
Pat dry 2 lbs lamb tenderloin. Season generously with salt and black pepper to taste. This initial seasoning is crucial for a flavorful Mississippi Slow Cooker Lamb Tenderloin, ensuring depth in every bite.
02 -
Place the sliced 1 medium yellow onion and 4 cloves minced garlic at the bottom of your slow cooker. This creates an aromatic bed that will infuse the lamb with rich flavor as it cooks.
03 -
In a small bowl, whisk together 1 packet (1 oz) dry ranch seasoning mix, 1 packet (0.6 oz) dry au jus gravy mix, 1/4 cup pepperoncini brine, 1 tbsp Worcestershire sauce, and 1/2 cup beef broth until well combined.
04 -
Place the seasoned lamb tenderloin over the onions and garlic. Pour the prepared sauce mixture evenly over the lamb. Scatter 1/2 cup pepperoncini peppers around the lamb. Top with 1/2 cup (1 stick) unsalted butter.
05 -
Cover and cook on low for 5 hours (300 minutes), or until the lamb is fork-tender and easily shreds. The long, slow cooking ensures a succulent and melt-in-your-mouth Mississippi Slow Cooker Lamb Tenderloin.
06 -
Carefully remove the lamb tenderloin from the slow cooker and place it on a cutting board. Tent with foil and let it rest for 10-15 minutes before slicing or shredding. This helps retain the juices.
07 -
Slice or shred the lamb and return it to the slow cooker with the flavorful juices, or serve directly from the board. Garnish with 2 tbsp fresh parsley, chopped. Serve your Mississippi Slow Cooker Lamb Tenderloin warm with desired sides.