01 -
Trim 1 1/2 lbs lamb tenderloin of any silverskin. In a small bowl, combine 1 tsp kosher salt, 1/2 tsp black pepper, 1 tbsp fresh rosemary, and 1 tsp fresh thyme. Rub this mixture evenly over the lamb. This prepares your Crockpot Brown Sugar Balsamic Glazed Lamb Tenderloin for searing.
02 -
Heat 1 tbsp olive oil in a large skillet over medium-high heat. Sear the seasoned lamb tenderloin for 2-3 minutes per side until nicely browned. This step locks in flavor and creates a beautiful crust, essential for the best Crockpot Brown Sugar Balsamic Glazed Lamb Tenderloin.
03 -
In a medium bowl, whisk together 1/2 cup packed light brown sugar, 1/2 cup balsamic vinegar, 2 tbsp low-sodium soy sauce, 1 tbsp Dijon mustard, 4 cloves minced garlic, 1/2 medium finely diced yellow onion, and 1/2 cup beef broth. Mix until well combined.
04 -
Transfer the seared lamb tenderloin to a 6-quart crockpot. Pour the prepared glaze mixture evenly over the lamb. Cover and cook on low for 3 hours, or until the lamb is tender and cooked to your desired doneness. This slow cooking method ensures a succulent Crockpot Brown Sugar Balsamic Glazed Lamb Tenderloin.
05 -
Carefully remove the lamb from the crockpot and tent with foil to rest for 10-15 minutes. In a small bowl, whisk together 1 tbsp cornstarch and 2 tbsp cold water to create a smooth slurry. Stir the cornstarch slurry into the sauce remaining in the crockpot.
06 -
Turn the crockpot to high (or transfer sauce to a saucepan) and simmer the sauce for 10-15 minutes, stirring occasionally, until it thickens to a desired consistency. Slice the rested lamb, pour the warm glaze over, and garnish with 2 tbsp fresh chopped parsley before serving.