Allemande Sauce

  

"Mix  3 Tablespoons butter and 3 Tablespoons flour and stir in sauce pan to prevent browning . Add stock, beating all the time. Cook ten minutes. Beat yolks of 3 eggs in bowl - pour sauce over eggs, very little at a time. Strain - add a little butter and juice of 1/2 a lemon. Heat but do not let boil. "

* Thanks to Spruce Eats for letting me find a recipe months before I finally found the one they left me! *