Duck Breast without walnuts

4 lrg duck breasts 2 x pears , (use quinces, when in season) 300 ml duck stock made from duck or possibly chicken, (or possibly chicken stock) bones 500 ml[...]

2 tsp oil , vegetable 2 x Magret duck, breasts, skin on and scored     Vinaigrette 3/4 c. pomegranate juice 1/4 c. rice vinegar 2 Tbsp. lemon , juice 1/2 c.[...]

1/2 c. red wine vinegar (125 ml) 1/4 c. sugar (60 ml) 1 Tbsp. coriander seeds (15 ml) 1 1/4 c. orange juice (310 ml) 1 c. chicken stock (250 ml) 1/2 tsp[...]