Score the skin of the duck breast in a diamond shape. Fry the meat in a hot, dry pan on the skin side for 7 minutes, add the butter after 3 minutes, then turn and sizzle for another 7 minutes. Brush the sides of the skin with 1 tablespoon of honey, pour the orange liqueur over the whole thing, ignite and flambé.
Then let the duck breasts rest on a preheated plate.
Boil the stock with the orange juice, add the orange peel and honey, stir in the creme fraiche and reduce a little. Season to taste with salt and pepper. Cut the meat diagonally and serve with the sauce.