Mustard Herb-Crusted Rack of Lamb
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For the night you want someone to feel looked after: a quick sear, a mustard-and-herb crust, and about twenty minutes in a hot oven. Then you cut between the bones, and the whole table sighs.
The short version
Sear the seasoned rack 2 minutes per side, brush with Dijon, press on herbed panko, and roast at 425°F until 125°F to 130°F, 15 to 20 minutes. Rest 10 minutes and cut between the bones.
What makes ours better
what we fixed so you don’t have to
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Sear before you roast. Two minutes per side in a hot pan browns the meat and renders the fat, which a quick roast on its own can't do.
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Dijon as glue. Mustard holds the crumbs on and adds tang that cuts the richness of the lamb. A little tastes bright; a lot tastes sharp.
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Crust it after the sear, not before. Breadcrumbs put on a raw rack steam and go soft in the pan. Added after browning, they toast while the lamb roasts.
What you need
the usual suspects
- Lamb1 rack
- Panko breadcrumbs½ cup
- Chopped fresh parsley2 tablespoons
- Chopped fresh rosemary or thyme1 tablespoon
- Garlic1 clove
- Olive oil1 tablespoon
- Dijon mustard2 tablespoons
yes, all of the butter
Steps
deep breath. you’ve got this.
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Heat the oven
Set a rack in the middle of the oven and heat it to 425°F. Take the lamb out of the fridge 30 minutes ahead.
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Season the rack
Pat the lamb dry. Trim the fat cap down to about ¼ inch if it is thick. Sprinkle the meat all over with the salt and pepper.
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Make the crumb mix
Stir the panko, parsley, rosemary, garlic and olive oil together in a small bowl until the crumbs look evenly damp.
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Sear the lamb
Heat the oil in a large ovenproof skillet over medium-high heat until it shimmers. Sear the rack meat side down for 2 minutes, flip and sear the fat side 2 more minutes, until deep brown. Pour off the fat. Stand the rack bone side down in the pan.
About 4 min. Cook mode has a timer for this step.
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Brush and press the crust
Let the rack cool in the pan for 1 minute so it is cool enough to handle. Brush the meat with the Dijon, then press the crumb mix onto the top and sides in an even layer.
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Roast
Roast until a thermometer in the thickest part reads 125°F to 130°F for medium-rare, 15 to 20 minutes. If the crust is browning too fast, tent it loosely with foil.
Check at 15 minutes. A rack is small, and a few minutes make the difference between pink and gray.
About 15 min. Cook mode has a timer for this step.
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Rest and carve
Move the rack to a cutting board, tent loosely with foil and rest 10 minutes. The temperature rises about 5 degrees. Cut between the bones with a sharp knife and serve 2 or 3 chops each.
About 10 min. Cook mode has a timer for this step.
Good to know
read this before somebody asks for seconds
- Ask the butcher to french the bones so they are clean, or buy it that way. If the rack comes with a heavy fat cap, trim it.
- Rack size varies. A 1-pound rack needs about 12 to 15 minutes.
- To double, roast two racks side by side and interlock the bones.
- Mint sauce, salsa verde or a spoonful of the pan juices are all good with it.
- Storage. Fridge, 3 days, wrapped. Leftover chops are good cold. Reheat gently in a 275°F oven for 10 minutes.
Questions, answered
the questions my cousins text me
How long do you cook rack of lamb?
About 15 to 20 minutes at 425°F after a 4-minute sear, until the thickest part reads 125°F to 130°F. Go by the thermometer, since racks vary in size.
What temperature should rack of lamb be?
Pull at 125°F to 130°F for medium-rare, 135°F for medium, and let it rest. It rises about 5 degrees. The official safe temperature is 145°F, which gives a more well-done chop.
Do I have to sear the lamb first?
You can skip it, but the crust and flavor are better with it. Without a sear, add about 5 minutes and expect a paler surface.
Can I make the crust ahead?
Yes. Mix the crumbs a day ahead and keep them covered. Press them on right after you brush with mustard.
Why did my breadcrumb crust fall off?
The meat was too wet or the mustard was too thin. Pat the lamb dry, brush on a good layer of Dijon, and press the crumbs firmly.
What should I serve with it?
Roasted potatoes and a green vegetable are enough. For a bigger crowd, see garlic rosemary roast leg of lamb.
From the table
Made it? Tell me everything. Especially if somebody said it was better than their mother’s. I’ll keep your secret.
Made it?
one star means we talk. five means I tell Dad.
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Published October 29, 2026.