Step 1: Add all pesto ingredients in a blender, combining the herbs, pistachio nuts and garlic. While blitzing gradually pour in olive oil. Season with ¼ teaspoon salt and ¼ teaspoon pepper.

Step 2: Preheat oven 400°F/200°C. Preheat sauté pan on high heat for 2 minutes. Season lamb with salt and pepper on both sides.

Step 3: Add 1 tbsp olive oil and sear lamb for 2-3 minutes each side until golden brown.

Step 4: Remove to a casserole dish to cool. Once cooled smear pesto on all sides, cover and refrigerate. Marinate 2-4 hours.

Step 5: 30 minutes before cooking remove lamb from fridge to let return to room temperature.

Step 6: Pop in the oven on a foiled oven tray for around 20 minutes or until the internal temperature is 125°F/51.7°C for medium rare.

Step 7: Let rest for 10 minutes before carving to let the juices redistribute back into the me

autore:thehealthyirishman