Cumin-Chile Lamb Kebabs with Garlic Yogurt

Ingredients

• 1 garlic clove, grated
• 1/2 tsp finely grated lemon zest
• 1 tbsp fresh lemon juice
• 1 cup plain Greek yogurt
• Kosher salt, freshly ground pepper
• 2 tbsp Sichuan peppercorns or 1 tsp black peppercorns
• 2 tsp caraway seeds
• 2 tsp crushed red pepper flakes
• 1 tsp sugar
• Vegetable oil (for grill)
• 1.25 lbs boneless lamb shoulder, cut into 1-inch pieces