Wash duck breasts, dab dry and cut skin side crosswise. Heat oil in a pan. First fry the duck breasts on the skin side, then turn them over and fry them on the underside.
Remove the duck breasts from the pan and put the cooking fat aside. Season meat with salt and pepper, place on a baking tray lined with baking paper and bake in a preheated oven (electric range: 175 °C/ convection oven: 150 °C/ gas: level 2) for 20-25 minutes.
5 minutes before the end of the baking time, spread with 2 tablespoons of Peking duck sauce. In the meantime clean, wash and cut spring onions into rings. Mix 3 tablespoons of Peking duck sauce, soy sauce and honey.
Fry the spring onions in the frying fat for 2 minutes while turning. Deglaze with Peking duck sauce mixture. Wash chives and shake dry. Heat tortillas at full power (600 W) for 20 seconds in the microwave.
Take the duck breasts out of the oven, cut them open and fill them with the spring onions into the tortillas, tie them up with chives.