Sumac Masala Rubbed Lamb Shoulder

Ingredients

• 10 ounces coriander, whole
• 3 ounces fennel seeds
• 3 ounces ground cinnamon
• 1 1/2 ounces turmeric
• 1 ounce Tellicherry peppercorns, whole
• 2 ounces star anise
• 8 ounces sumac spice
• 1/4 ounce cardamom
• 1/4 ounce cloves
• 2 pounds cauliflower
• 6 - 8 medium shallots, sliced
• 1/2 gallon heavy cream
• 2 bay leaves
• 3 - 4 sprigs thyme
• 3/4 pound unsalted butter, cold and diced
• Salt and white pepper, to taste
• 5 pounds boneless lamb shoulder
• Salt
• pepper
• Egg whites, frothed, as needed
• 1 pound Matsutake mushrooms
• 2 tablespoons unsalted butter
• 1 sprig thyme
• 1 garlic clove
• 1/2 lemon, juiced
• 2 Honey crisp apples
• 1 ounce lemon juice
• 3 ounces olive oil
• 4 lambs lettuce (mâche or other delicate salad greens)