To prepare a lanas sweet and sour meatballs recipe, first you need to prepare the ingredients. You will need: 1 pound ground beef 2 tablespoons kosher salt 1 tablespoon ground cumin 1 teaspoon ground coriander 2 teaspoons ground nutmeg 12 cup water 2 tbsp. ground black pepper Instructions: Heat the olive oil over medium-high heat. Add the beef and cook until browned on all sides, about 5 minutes. Remove from the heat and set aside to cool. Cut the meat into 1-inch (2.5 cm) chunks and place them in the bowl of your food processor or blender. Pulse the mixture until it resembles fine crumbs. Pour the cooled mixture into the center of each meat chunk and mix until the pieces are evenly coated. Cover and refrigerate until you are ready to serve.