Heat a large pan. Score the skin on the duck breasts and place them in the hot pan, skin side down. You don't need any oil in the pan. Brown well then remove to a plate. Pour off most of the fat - leave about 1 tablespoon in the pan. Add in the shallots and cook for about five minutes to soften. Add in the red wine, orange zest, orange juice and seasoning and bring to the boil. Place the duck breasts back in the pan and simmer for ten minutes.
Remove the duck from the pan and cover with foil to keep warm while you finish the sauce. Add the redcurrant jelly and cornflour mixture into the pan and bring to the boil, stirring all the time. Reduce to simmer for a couple of minutes.