Lightly brush the tenderloin with melted butter and dredge in flour.Thoroughly mix the remaining dry ingredients together.
Dip the tenderloin in the egg wash and then roll in the breading mixture. Bake in a 400 degree oven for 5 mins per inch of thickness for a medium rare. Top with boursin cheese sauce.
Bring the heavy cream and bouillon to a boil, add roux to thicken and remove from heat. Stir in the boursin cheese. Slice the tenderloin at an angle and fan on the plate, then ladle on a stream of sauce.