If using fresh mushrooms, wipe clean; do not wash. Trim and slice them. Saute over high heat in 2 Tbsp. butter for 5 minutes, stirring often. After 5 minutes, scatter parsley and sage over mushrooms and season with salt and pepper.
Melt remaining butter and stir in flour, egg yolk, and lemon juice. Pour sauce over mushrooms. Turn off heat.
Stir well and place over low heat for a few minutes to thicken. Don't let sauce boil. Transfer to serving dish. Serve immediately.
Calories From Fat
% Daily Value*
Total Fat 0g
Saturated Fat 0g
Trans Fat 0g
Dietary Fibers 0g
* Percent Daily Values are based on a 2,000 calorie diet.
* Nutrition information is estimated based on the ingredients and cooking instructions as described in each recipe and is intended to be used for informational purposes only. Please note that nutrition details may vary based on methods of preparation, origin and freshness of ingredients used.