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How Long to Cook Leg of Lamb (Bone-In) in Roast

Time, temperature, and tips for perfect results every time.

Roast

Leg of Lamb (Bone-In)

Cook Time

140-210 min

Set Roast To

325°F

cooking temperature

Safe Internal Temp ?

145°F

63°C · USDA FSIS

Preheat Roast before cooking

Cooking Tips

  • Make slits and insert garlic and rosemary
  • Season generously with herbs and olive oil
  • Rest at least 20 minutes before carving

Kitchen Timer

175:00

175 min preset

min
:
sec

Adjust for Weight

oz
80 oz144 oz

Adjusted cooking time

140-210 min

Leg of Lamb (Bone-In) Doneness Guide ?

Level ?Internal Temp ?Description
rare125°FCool red center
medium rare135°FWarm red center
medium145°FWarm pink center
medium well155°FSlight pink center
well done165°FNo pink, fully cooked

Temperature Options

TemperatureTimeNotes
325°F(recommended)140-210 minFor 7 lb leg, about 20-25 min per pound
350°F120-180 minSlightly faster roast

Frequently Asked Questions

How long to cook Leg of Lamb (Bone-In) in Roast?

Leg of Lamb (Bone-In) takes 140-210 minutes in Roast at 325°F. Verify internal temperature reaches 145°F with a meat thermometer.

What temperature to bake Leg of Lamb (Bone-In)?

The recommended temperature for Leg of Lamb (Bone-In) in Roast is 325°F. For 7 lb leg, about 20-25 min per pound

Should I cover Leg of Lamb (Bone-In) when bakeing?

It is generally not necessary to flip Leg of Lamb (Bone-In) during this cooking method. Check your specific recipe for guidance.

Can I cook frozen Leg of Lamb (Bone-In) in Roast?

Yes, you can cook frozen Leg of Lamb (Bone-In) in Roast. Add approximately 50% more time (210-315 minutes). Always verify internal temperature before serving.

Do I need to preheat Roast for Leg of Lamb (Bone-In)?

Yes, preheating your Roast is recommended for best results. This ensures even cooking and proper browning from the start.