Here is my favorite rack of lamb recipe, with a simple garlic rub that makes the meat taste amazing, and a quick butter sauce that brings everything together perfectly.
This roasted lamb is what I make when I want to impress dinner guests without spending all day in the kitchen. It looks fancy but it’s really easy to pull off, and everyone always asks for the recipe.
Why You’ll Love This Rack of Lamb
- Restaurant-quality at home – This recipe helps you create an impressive main course that looks and tastes like something from a fancy steakhouse, right in your own kitchen.
- Quick cooking time – Ready in under an hour, this rack of lamb is perfect when you want something special but don’t have all day to spend in the kitchen.
- Simple seasoning – Just a few pantry staples create a flavorful crust that lets the natural taste of the lamb shine through.
- Perfect for special occasions – Whether it’s date night, a holiday dinner, or when you’re hosting guests, this dish always impresses without requiring advanced cooking skills.
- Rich butter sauce – The garlic butter sauce adds an extra layer of flavor that makes every bite even more delicious.
What Kind of Lamb Should I Use?
For this recipe, you’ll want to ask your butcher for a frenched rack of lamb, which means the bones have been cleaned and trimmed to look nice and neat. Most racks come with 8 ribs, but you might find some with 7 or 9 – either will work just fine. If you’re buying from the supermarket, look for lamb that’s bright pink to red in color with white fat, and avoid any that looks gray or has a strong smell. You can also ask your butcher to french the rack for you if it hasn’t been done already, and they’ll usually do it for free. Whether you choose domestic or imported lamb is up to you, though New Zealand and Australian lamb tends to be a bit smaller and more mild in flavor compared to American lamb.
Options for Substitutions
While lamb is the star here, you do have some wiggle room with a few ingredients:
- Rack of lamb: This recipe really needs lamb to be what it is, but if you can’t find a frenched rack, ask your butcher to french it for you, or buy lamb chops and arrange them together. You could also try this method with a bone-in leg of lamb, though you’ll need to adjust cooking times.
- Instant chicken stock: If you don’t have instant chicken stock, use chicken bouillon powder or even beef bouillon for a richer flavor. You can also skip it and just add a bit more salt.
- Fresh thyme: Rosemary works great with lamb too, or you can use dried thyme (about 1 teaspoon) if fresh isn’t available. Just add it to your spice rub instead of roasting it with the garlic.
- Garlic cloves: If you only have peeled garlic, that’s fine – just wrap them in foil before roasting so they don’t burn. You’ll get the same sweet, mellow flavor.
- Butter dipping sauce: Not sure what this is? You can make a simple one by melting butter with minced garlic and herbs, or serve the lamb with mint jelly, chimichurri, or even a red wine reduction instead.
Watch Out for These Mistakes While Cooking
The biggest mistake when cooking rack of lamb is not bringing it to room temperature before roasting, which can lead to uneven cooking with an overcooked exterior and raw center – take the lamb out of the fridge 30-45 minutes before you plan to cook it.
Overcooking is another common issue since lamb is best served medium-rare to medium (internal temperature of 130-135°F), so use an instant-read thermometer inserted between the ribs to check doneness and remove it from the oven when it’s about 5 degrees below your target temperature.
Don’t skip the crucial step of letting the lamb rest for 10 minutes after roasting, as cutting into it too soon will cause all those flavorful juices to run out onto your cutting board instead of staying in the meat.
For the best crust, make sure to sear the lamb fat-side down first in a hot pan before transferring it to the oven, and remember that the garlic cloves with their skins on will become sweet and spreadable, so don’t toss them out.
What to Serve With Rack of Lamb?
Rack of lamb pairs beautifully with roasted vegetables like asparagus, Brussels sprouts, or baby carrots that can cook alongside the meat in the oven. Creamy mashed potatoes or a smooth potato gratin are perfect for soaking up that rich butter sauce, and they balance out the savory flavors of the garlic and herbs. A simple arugula salad with lemon vinaigrette adds a nice peppery bite that cuts through the richness of the lamb. If you want to make it feel extra special, serve it with some crusty bread to mop up every bit of that garlic butter sauce.
Storage Instructions
Store: Leftover rack of lamb keeps well in the fridge for up to 3 days. Just wrap it tightly in foil or place it in an airtight container. The butter sauce can be stored separately in a small jar or container for the same amount of time.
Freeze: You can freeze cooked lamb for up to 2 months, though I find it’s best enjoyed fresh. Wrap individual portions tightly in plastic wrap, then in foil before freezing. The butter sauce doesn’t freeze as well, so I’d recommend making that fresh when you’re ready to serve.
Reheat: To reheat, let the lamb come to room temperature first, then warm it gently in a 300°F oven for about 10-15 minutes. You want to warm it through without overcooking it further. Reheat the butter sauce in a small pan over low heat, stirring occasionally until it’s smooth and warm.
| Preparation Time | 15-20 minutes |
| Cooking Time | 25-35 minutes |
| Total Time | 40-55 minutes |
| Level of Difficulty | Medium |
Estimated Nutrition
Estimated nutrition for the whole recipe (without optional ingredients):
- Calories: 2100-2400
- Protein: 90-110 g
- Fat: 200-220 g
- Carbohydrates: 10-16 g
Ingredients
For the lamb:
- 1 rack lamb, frenched (about 8 ribs)
- 1 tsp kosher salt
- 1 tsp ground black pepper
- 1 tsp powdered instant chicken stock
- 1 tsp garlic powder
- 1 tsp onion powder
- 10 whole garlic cloves, unpeeled
- 1 small bunch fresh thyme
- 1/2 cup unsalted butter, cut into cubes
For serving:
- 1/2 cup butter dipping sauce
Step 1: Season the Rack of Lamb
- 1 rack lamb, frenched (about 8 ribs)
- 1 tsp kosher salt
- 1 tsp ground black pepper
- 1 tsp powdered instant chicken stock
- 1 tsp garlic powder
- 1 tsp onion powder
Preheat your oven to 425ºF (220ºC).
Generously rub the rack of lamb with kosher salt, ground black pepper, powdered instant chicken stock, garlic powder, and onion powder.
Let the seasoned rack of lamb sit at room temperature to ensure even cooking.
Step 2: Prepare Roasting Pan and Arrange Aromatics
- seasoned rack of lamb from Step 1
- 10 whole garlic cloves, unpeeled
- 1 small bunch fresh thyme
- 1/2 cup unsalted butter, cut into cubes
Line the bottom of a roasting pan with the whole, unpeeled garlic cloves.
Place the seasoned rack of lamb from Step 1 on top of the garlic.
Scatter fresh thyme sprigs around the lamb for a fragrant aroma.
Distribute the cubes of unsalted butter evenly over the top of the meat.
Step 3: Roast the Lamb
- rack of lamb assembled with garlic, thyme, and butter from Step 2
Roast the prepared rack of lamb in the preheated oven for about 25 minutes, or until an instant-read thermometer inserted into the thickest part of the meat registers 135ºF (60ºC) for medium-rare doneness.
I find using a thermometer is the best way to achieve perfect results every time.
Step 4: Rest and Carve the Lamb
- roasted rack of lamb from Step 3
Remove the rack of lamb from the oven and transfer it to a cutting board.
Cover loosely with foil or parchment paper and let it rest for 10 minutes to allow the juices to redistribute for maximum tenderness.
After resting, turn the rack upside down and slice between the ribs with a sharp knife to create individual chops.
Step 5: Plate and Serve
- roasted garlic cloves from Step 2
- 1/2 cup butter dipping sauce
Arrange the carved lamb chops on a serving platter.
Serve with the roasted garlic cloves from the pan and set out the butter dipping sauce for drizzling or dipping.
Serve immediately and enjoy.
Easy Garlic Roasted Rack of Lamb with Butter Sauce
Ingredients
For the lamb:
- 1 rack lamb, frenched (about 8 ribs)
- 1 tsp kosher salt
- 1 tsp ground black pepper
- 1 tsp powdered instant chicken stock
- 1 tsp garlic powder
- 1 tsp onion powder
- 10 whole garlic cloves, unpeeled
- 1 small bunch fresh thyme
- 1/2 cup unsalted butter, cut into cubes
For serving:
- 1/2 cup butter dipping sauce
Instructions
- Preheat your oven to 425ºF (220ºC). Generously rub the rack of lamb with kosher salt, ground black pepper, powdered instant chicken stock, garlic powder, and onion powder. Let the seasoned rack of lamb sit at room temperature to ensure even cooking.
- Line the bottom of a roasting pan with the whole, unpeeled garlic cloves. Place the seasoned rack of lamb from Step 1 on top of the garlic. Scatter fresh thyme sprigs around the lamb for a fragrant aroma. Distribute the cubes of unsalted butter evenly over the top of the meat.
- Roast the prepared rack of lamb in the preheated oven for about 25 minutes, or until an instant-read thermometer inserted into the thickest part of the meat registers 135ºF (60ºC) for medium-rare doneness. I find using a thermometer is the best way to achieve perfect results every time.
- Remove the rack of lamb from the oven and transfer it to a cutting board. Cover loosely with foil or parchment paper and let it rest for 10 minutes to allow the juices to redistribute for maximum tenderness. After resting, turn the rack upside down and slice between the ribs with a sharp knife to create individual chops.
- Arrange the carved lamb chops on a serving platter. Serve with the roasted garlic cloves from the pan and set out the butter dipping sauce for drizzling or dipping. Serve immediately and enjoy.
