4ouncesfresh white button mushroomswiped clean, stemmed, and thinly sliced
Pinchsalt/ black pepper
Instructions
For Gravy
Melt butter in small saute pan. Add the onion and celery and saute until soft, about 2 minutes. Add flour and continue to stir until blond roux forms.
Whisk in the chicken broth. Bring to a boil, reduce the heat to medium-low, and simmer until the mixture thickens and the flour taste is gone, about 20 minutes. Taste and adjust seasoning.
For Mushrooms
Melt butter in small saute pan over high heat, Add the mushrooms, and saute, stirring occasionally, until mushrooms are soft, have released their liquid, and are golden, about 3 minutes. Taste and adjust seasoning.
Assembly
Spread about 1 1/2 teaspoons of the mayonnaise on each slice of bread. Arrange equal amounts of the turkey on top of each slice of bread. Ladle equal amounts of the gravy (almost 1/2 cup each) over each open-faced sandwich.
Divide the Sauteed mushrooms evenly over the gravy among the tops of the sandwiches and serve.