Greek Meatballs Keftethes With Tsatziki Sauce

Ingredients

• 1 large onion , finely minced
• 1 tablespoon vegetable oil
• 1 kg lean ground beef or 1 kg lamb ( 2 1/4 pounds )
• 2 cups unseasoned breadcrumbs , moistened in about 3/4 cup warm water
• 2 eggs , beaten
• 1 1/2 tablespoons finely chopped mint ( if not available use chopped , dried mint )
• 2 1/2 teaspoons salt
• black pepper
• 2 tablespoons ouzo ( optional )
• 1 1/2 tablespoons finely chopped fresh parsley
• plain flour
• 1 cup olive oil , and corn oil mixed ( you may need slightly more )
• 1 medium cucumber
• 3 garlic cloves
• 3 tablespoons finely chopped of fresh mint or 2 tablespoons dried mint
• 3 cups yogurt
• salt
• pepper