Grilled Leg Of Lamb With Olive Relish

• 1 shallot (minced)
• 2,400 gr leg of lamb trimmed boned
• 60 ml olive oil
• 30 ml wine vinegar (red)
• 16 ml worcestershire sauce
• 8 gr garlic (chopped)
• 6 gr pepper flakes (red)
• 6 gr salt