Slow Cooker Roast Lamb Leg with Gravy

Bahan-bahan (5 porsi)

• 2.0 kg / 4 lb lamb leg, bone in ((Note 1))
• 1 tsp salt
• black pepper
• 2 large garlic cloves (, minced)
• 1 1/2 tsp dried thyme OR rosemary ((or 2.5 tsp finely chopped fresh))
• 1 tbsp olive oil
• 2 cups / 500ml beef stock ((or chicken) (Note 2))
• 1 sprig rosemary (, optional)
• 50 g / 3 tbsp butter
• 3 tbsp / 40 g flour ((any white))
• 2 cups / 500 ml braising liquid from slow cooker (, strained)
• Salt and pepper