The Real Turkish Shish Kebab recipes

Name: The Real Turkish Shish Kebab recipes
Ingredients: 1 cup plain whole-milk yogurt; 1/4 cup extra-virgin olive oil; 2 cloves garlic, minced; 2 teaspoons Aleppo pepper flakes, or 1 teaspoon hot red pepper flakes; 1 teaspoon salt; 1 teaspoon freshly ground black pepper; 1 1/2 pounds boneless loin or shoulder of lamb, cut into 1-inch cubes (include some fatty pieces); 8 ripe plum tomatoes or small round tomatoes; 12 bull’s horn peppers, stemmed; 4 pita breads; 2 tablespoons ground sumac (optional), for serving