01 -
First things first, take your lamb tenderloin out of the fridge about 30 minutes before you plan to cook. This helps it cook more evenly, a little trick I learned after a few too many unevenly cooked roasts! Pat it super dry with paper towels—this is crucial for a good sear, trust me. Then, rub it all over with the garlic powder, onion powder, smoked paprika, a generous pinch of salt, and plenty of fresh black pepper. Don't be shy; you want those flavors to really sink in before the Apple Butter Glazed Lamb Tenderloin magic happens.
02 -
Heat the olive oil in a heavy-bottomed, oven-safe skillet (cast iron is my absolute favorite for this!) over medium-high heat until it’s shimmering. Carefully place the seasoned lamb tenderloin in the hot skillet. Sear it for about 2-3 minutes per side, getting a beautiful golden-brown crust all over. This step locks in all those delicious juices and creates a fantastic texture. I always get a little thrill from that sizzling sound, honestly.
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While the lamb is searing, quickly whisk together your apple butter, Dijon mustard, apple cider vinegar, and brown sugar in a small bowl. Give it a good stir until everything is nicely combined and smooth. This is where the sweet and tangy heart of our Apple Butter Glazed Lamb Tenderloin comes alive! Taste it, maybe add a tiny bit more vinegar if you like it tangier, or a pinch more sugar if your apple butter is less sweet. Trust your gut!
04 -
Once the lamb is seared, carefully brush about half of the apple butter glaze all over the tenderloin in the skillet. Transfer the skillet to your preheated oven (set at 400°F / 200°C). Roast for 10-15 minutes, or until an instant-read meat thermometer inserted into the thickest part reads 130-135°F (54-57°C) for medium-rare, or 135-140°F (57-60°C) for medium. Don't overcook it! Lamb tenderloin can dry out quickly, and we want this Apple Butter Glazed Lamb Tenderloin to be juicy.
05 -
This step, my friends, is non-negotiable! Once the lamb reaches your desired doneness, remove the skillet from the oven. Transfer the lamb to a cutting board and loosely tent it with foil. Let it rest for at least 5-10 minutes. This allows the juices to redistribute, ensuring a tender, moist Apple Butter Glazed Lamb Tenderloin. While it’s resting, warm up the remaining glaze gently in a small saucepan, or even in the microwave if you’re in a hurry (I've done it, no judgment!).
06 -
After resting, slice the lamb tenderloin against the grain into beautiful medallions. Drizzle with the warmed remaining apple butter glaze. Garnish with fresh thyme or rosemary, and honestly, just admire your handiwork. The aroma filling your kitchen right now? That's the smell of pure deliciousness. It should be glistening, tender, and oh-so-inviting!