Shashlik-Style Beef Kebabs

Ingredients

• 1/2 cup coarsely chopped onion
• 1/4 cup vegetable oil
• 2 tablespoons red wine vinegar
• 4 garlic cloves
• 1 tablespoon soy sauce
• 1 tablespoon kosher salt
• 1 tablespoon sugar
• 1 teaspoon ground cumin
• 1/2 teaspoon pepper
• 1/2 teaspoon ground coriander
• 1/4 teaspoon ground cinnamon
• 1/4 teaspoon cayenne pepper
• 1 bay leaf, crumbled
• 2 pounds sirloin steak tips, trimmed and cut into 1-inch pieces
• 1 onion, chopped fine
• 1/3 cup water
• 1 tablespoon vegetable oil
• 1/2 cup plain whole-milk yogurt
• 1/3 cup chopped fresh cilantro
• 2 teaspoons lemon juice
• 6 (10-inch) wooden skewers, soaked in water for at least 30 minutes