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How Long to Cook Rack of Lamb

2 cooking methods with times, temperatures, and tips. Safe to 145°F (USDA FSIS).

Roast

Rack of Lamb

Cook Time

15-25 min

Set Roast To

425°F

cooking temperature

Safe Internal Temp

145°F

63°C · USDA FSIS

Preheat Roast before cooking

Cooking Tips

  • Sear the rack on stovetop first for a crust
  • Apply herb and mustard crust before roasting
  • Use a thermometer for precision

Rest for 10 minutes before serving

Resting allows juices to redistribute for a moister result.

Roast Temperature Options

TemperatureCook Time
425°Frecommended15-25 min
450°F12-20 min

Rack of Lamb Doneness Guide

LevelInternal TempDescription
rare°FCool red center
medium rare°FWarm red center
medium°FWarm pink center
medium well°FSlight pink center
well done°FNo pink, fully cooked

Adjust Cooking Time by Weight

Adjust for Weight

24oz
16 oz32 oz

Adjusted cooking time

15-25 min

All 2 Ways to Cook Rack of Lamb

Kitchen Timer

Kitchen Timer

20:00

20 min preset

min
:
sec

Frequently Asked Questions

How long does it take to cook Rack of Lamb?

Rack of Lamb typically takes 15-25 minutes using the Oven method at 425°F. Times vary by cooking method and weight.

What temperature should Rack of Lamb be cooked to?

Rack of Lamb must reach an internal temperature of 145°F (63°C) according to USDA FSIS guidelines. Always verify with a meat thermometer.

What is the best method to cook Rack of Lamb?

Rack of Lamb can be prepared using 2 different methods: Roast, Grill. The most popular method is Roast.

Can I cook Rack of Lamb from frozen?

Yes, you can cook Rack of Lamb from frozen. Add approximately 50% more cooking time (multiply by 1.5x). Always verify the internal temperature reaches the safe minimum before serving.

How do I know when Rack of Lamb is done?

The most reliable way to check doneness is using an instant-read meat thermometer. Rack of Lamb is done when the internal temperature reaches 145°F (63°C). Do not rely on color alone.