Rack of Lamb with Rosemary Mustard Glaze (GF)

This Rack of Lamb with Rosemary Mustard Sauce is the perfect meal for Easter or any night to welcome the warmer days of spring! Luscious lamb is highlighted by the rosemary mustard sauce, a delightful balance of flavors that will make you fall in love with lamb all over again.

What do you like about springtime most? In addition to the longer days and the end of the rainy season, I look forward to the fresh fruits and vegetables in the markets and the most amazing lamb of the year. When lamb starts showing up on restaurant menus, I know that the warm weather is right around the corner. It also reminds me of one of the most incredible meals I’ve ever had.

On a beautiful, late-spring evening years ago, a friend threw a dinner party for our large crowd of friends. He was an avid cook with some serious skills so we knew the party was going to be memorable. The patio was lit with strings of lights woven through the trees and the tables were covered with beautiful linens and set for a multi-course dinner.

Glassware sparkled in the light of the candles scattered down the length of the tables. A huge cut of meat was cooking on the grill and the aromas wafting through the air had everyone salivating. We couldn’t wait for dinner.

Course after course came out of the kitchen and the wine flowed freely that evening. When the entree was served it was quite dark and we couldn’t really see what we were eating. One bite and I knew it was the best I had ever eaten, but no one could identify for sure what kind of meat it was. There were lots of guesses and we finally had to ask my friend what he had prepared for us. When he told us it was leg of lamb, I just about fell off my chair! There was absolutely no way that this delicately flavored, tender, juicy meat could be lamb. That was the day I learned that not all lamb is created equal.

A rack of lamb, roasted with fresh herbs and presented with a succulent pan sauce is one of spring’s most luxurious offerings. Well worth the splurge in my opinion. Lamb should always be served rare to medium-rare, deep pink in the center, never well done or it will be tough and dry. The smaller the ribs, the younger and more tender the lamb.

Marinating lamb with a rosemary mustard sauce a day ahead perfumes it with an intense freshness, helping guard against any gaminess. When paired with steamed vegetables, it is a culinary triumph worthy of any celebration. Squeezing a little lemon over the lamb adds a fresh brightness, complementing the savory flavors.

For today’s rack of lamb with rosemary mustard sauce, once the lamb has been cooked, you set it aside, tented with foil to rest, while you make the pan sauce. Mustard, lemon juice and herbs are added directly to the pan drippings. When combined they make an absolutely delectable glaze and serving sauce. Whisk in a little butter right before drizzling over the lamb and your guests will be ecstatic.

One of the things I like most about this lamb is that once it has marinated, it is ready in no time and you can get an elegant meal on the table for Easter with very little work. If you prep your vegetables in advance too, everything will come together very quickly and you can spend more time chatting with your family and guests.

Easter egg hunts with children dressed in pastels, carrying their baskets and running around the yard looking for hidden treasures, is one of my fondest childhood memories. I hope you all have a fabulous Easter and that the Easter Bunny brings you many sweet treats.

If you try this recipe, let me know! Please leave a star rating in the recipe card, comment below, and don’t forget to snap a pic and tag it @theheritagecook on Instagram! Seeing your creations makes my day and I love hearing from you!

Ingredients for Rack of Lamb with Rosemary Mustard Sauce:

• Racks of lamb, extra virgin olive oil, black pepper, garlic
• Rosemary, lemon zest, kosher salt
• Shallots, beef broth, white wine, mustard, lemon juice, butter

 

How to “French” a Rack of Lamb, Pork, or Some Steaks

Frenching means to scrape all the clinging meat, membranes, and fat off the exposed bones on a rack of ribs. Most racks of pork and lamb are sold already Frenched, but rarely are the racks cleaned as well as I like so I wind up finishing it myself. If you can’t find a Frenched rack, here are steps to do it yourself with detailed directions that demonstrate two ways of doing it.

Remove the large slab of fat and meat from the top of the ribs, pulling it back and using a slender knife to help release it. If there is a chine bone at the bottom, cut that away too to make it much easier to carve between the bones. Once you are done Frenching, you can tie the chine bone back on. All of your scraps can be used to make a sauce for your dish or other uses.

You want about 2-inches of the bones completely clean, starting about 1-inch above the eye of meat. Make a cut straight across the whole rack. Starting at the cut line and following the curve of the ribs, slice away the excess fat and scraps. Flip the rack over and make a similar cut to release the membrane on the bottom of the ribs. Score the membrane in the center of each rib and on either side of the ribs. Cut down on either side of each rib, then across at the first cut line to remove the meat from between the bones. Using the back of your knife. scrape the edges of the exposed bones and finally use a towel to finish cleaning each rib. Once the rack is fully Frenched, I like to tie the chine bone back on to protect the eye and to give me some fun nibbling bits.

To see a technique for Frenching a rack of lamb, take a look at this guide given by a culinary student after learning the technique in class. 

 

How to make Rack of Lamb with Rosemary Mustard Sauce:

1. Marinate the frenched racks of lamb at least 8 hours or overnight.
2. Scrape off any excess marinade and discard the marinade.
3. Sear the lamb in a skillet until golden brown then transfer to the oven and bake about 25 minutes until medium-rare.
4. Transfer to a cutting board, cover with foil, and let rest while you make the sauce.
5. In the same skillet you browned the lamb in, cook the shallots in the drippings then deglaze the pan with the broth and wine, reducing for about 5 minutes.
6. Stir in the mustard, lemon juice, rosemary and cook another minute; remove from the heat and whisk in the butter; taste and season with more salt if needed; if the sauce is too salty, add more lemon. Brush the outside of the lamb racks with the sauce.
7. Carve the racks into individual chops and serve, drizzled with some of the pan sauce; serve immediately.

 

PRO Tip:

In the kitchen, after cooking the lamb, I separate the racks and cut each one into chops to make it easier to eat. It is easy to cut between the ribs. Stand them upright and cut downward with your knife – if you encounter any resistance at the bottom, tilt the knife slightly to move around a bone as needed. You can also cut double chops which have 2 ribs each.

 

Recommended Tools (affiliate links; no extra cost to you):

• Microplane grater
• Citrus reamer
• Chef’s knife
• Paring knife
• Cutting board
• Baking sheets
• Large skillet

 

Gluten-Free Tips:

* The major gluten-free organizations have declared that distilled alcohols are gluten free. Wine is also considered safe. For some very sensitive people wine may cause issues. In a few rare cases, wine makers may use barrels that have minute amounts of gluten in the caulk. If you have issues with wine, look for a winery that uses only stainless steel containers to age their wines.

You will get the best and most consistent results by using a digital kitchen scale and weighing your ingredients, especially when you are baking. And use grams, they are much more accurate than pounds and ounces.

All recommended ingredients are gluten-free as of the writing of this article. Always check to be sure the products haven’t changed and are still safe to consume.

 

 

 

Create a New Tradition Today!

Welcome! The suggestions here are not intended as dietary advice or as a substitute for consulting a dietician, physician, or other medical professional. Please see the Disclaimers/Privacy Policy page for additional details. Unauthorized use, distribution, and/or duplication of proprietary material from The Heritage Cook without prior approval is prohibited. If you have any questions or would like permission, please contact me. We participate in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com. As an Amazon Associate, I earn a small amount from qualifying purchases without any additional cost to you. This page may contain affiliate links. The author makes no claims regarding the presence of food allergens and disclaims all liability in connection with the use of this site. This post was first shared in March 2016. The article was updated in 2025.