Salt and pepper the chicken breast fillets and fry on both sides. Wrap in aluminum foil and let it soak in an oven preheated to 80 degrees.
Deglaze the roast with white wine. Add the chopped gorgonzola and mash with a fork. Pour in the cream and orange juice and reduce the sauce, stirring constantly. Season with a little salt and pepper.
Peel the orange - including the white skin - cut into slices and gently fry in butter.
Slice the chicken breast fillets in a fan shape. Place 2 orange slices each on hot plates. Place the sliced chicken breast fillets on top and cover with the sauce.