Slice the chicken breast to make a pocket. Fill these with Boursin cream cheese as desired. Season with salt, paprika or pepper and wrap with bacon. Insert a sprig of rosemary per breast. Fry the breasts well in the pan.
Boil the potatoes in the water until soft. When they are cold, cut open lengthways and hollow out a part so that small boats are created. Mix the sour cream with the finely chopped parsley, the chives and (if there is anything left) with the finely chopped bacon. Pour a little salt over the potatoes and pour the sour cream mixture into the boats. Decorate with the remaining rosemary sprigs and place in a gratin dish. Bake in the oven at 200 degrees for about 12 minutes.
Arrange the chicken breast nicely with the potato boats.