In a pressure cooker with a fitted rack add the hay and spices. Carefully light the hay until it starts to generate smoke.
Place the rack over the hay and close your cooker with a fitted lid. Set your hob to low heat and allow to smoke for 15-20 minutes until done.
Prepare a frying pan or grill on high heat, brush the chicken breasts with olive oil and season with salt and pepper. Sear the breasts on each side for 1-2 minutes until golden brown. Remove from the heat and set aside.
Prepare the dressing by finely chopping the rosemary. Place in a bowl with the olive oil, Sichuan pepper and mix. Taste for seasoning and serve with your chicken.
Nutritional value is only for Smoked Chicken Breasts and doesn't include the optional dressing.