Make the marinade by grinding fennel and coriander seeds, mixing them with sugar, salt, orange zest, sage, tarragon, Dijon mustard, and olive oil.
Pat dry the chicken and spread the marinade over it before setting it aside to marinate.
Prep the pan by slicing oranges, fennel, and shallots, and placing them in a pan with olive oil and orange juice. Add the chicken on top and bake at 425°F.
Carve the chicken and serve with oranges, fennel, shallots, and pan juices. Optionally, make stock with the scraps.
