Step-by-Step Instructions

1. 1.Marinate the Chicken

   Place boneless chicken thighs in a bowl. Add lemon juice, salt, dried oregano, and black pepper. Mix well to coat the chicken. Finally, add olive oil and mix again. Marinate for at least 30 minutes, or preferably overnight for best flavor.

2. 2.Prepare Pita Bread Dough

   In a stand mixer bowl, combine water, instant dry yeast, and sugar. Mix briefly. Add all-purpose flour, salt, and olive oil. Mix on low speed for 2 minutes until a dough forms. Continue kneading for 6 minutes until the dough is smooth and elastic.

3. 3.Rest the Pita Dough

   Form the kneaded dough into a ball. Place it in a lightly greased bowl, cover, and let it rest for about 30 minutes in a warm place until it doubles in size.

4. 4.Grill the Chicken

   Heat a grill pan over medium-high heat. Place the marinated chicken thighs on the hot pan and grill until fully cooked through and nicely browned on both sides, approximately 5-7 minutes per side depending on thickness.

5. 5.Make Tzatziki Sauce

   In a bowl, combine Greek yogurt, grated cucumber (peeled and seeded), chopped garlic, lemon juice, white pepper, and salt. Stir well until all ingredients are thoroughly mixed. Set aside.

6. 6.Divide and Roll Pita Dough

   Once rested, divide the pita dough into 8 equal portions, approximately 70 grams each. Form each portion into a smooth ball. Lightly dust a clean surface with flour. Using a rolling pin, roll each dough ball into a thin, round circle, about 7-8 inches in diameter. Roll, then turn 90 degrees and roll again to maintain a circular shape.

7. 7.Cook Pita Bread

   Heat a griddle or non-stick pan over medium-high heat. Place one rolled pita bread on the hot pan. Cook for about 1-2 minutes until bubbles appear and it starts to puff up, creating a pocket. Flip the pita and cook for another 1-2 minutes until lightly browned spots appear on both sides. Repeat with the remaining pita dough.

8. 8.Prepare Chicken for Assembly

   Once grilled and slightly cooled, use kitchen shears or a knife to cut the chicken thighs into smaller, bite-sized strips or pieces, suitable for filling the pita bread.

9. 9.Assemble Greek Chicken Gyros

   Take a cooked pita bread and carefully cut it open along one edge to create a pocket. Fill the pocket with the cut grilled chicken, sliced red onions, and sliced seeded tomatoes. Drizzle generously with the prepared tzatziki sauce. Garnish with fresh parsley before serving.