Using a sharp knife, score the skin of each duck leg / breast in a diamond pattern or diagonally. Marinate them with salt and black pepper. Set aside until you're done cooking the apple sauce.
Cook the apple in a cleaned pan, stirring for approx 5 minutes.
Add sugar & juice; cook until wedged apple is fully wilted and turned into brown colour. (Note: you may need to adjust the flavour with sugar, water and lemon to your liking)
Once done, the sauce should look like apple jam (see picture). Set aside
Heat a pan or a griller with canola oil. Place duck, skin side down first, cook for 10mins or until skin is golden and crisp. Turn duck over; cook for another 3-5 mins. Then remove from pan.
Serve the duck with a dollop of mashed cauliflower, a side dish such as pear salsa (see my previous guide), and the apple sauce with 2 sprigs of fresh thyme for that extra contrasting flavour. Enjoy.