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Mushroom Toasts



  • 1lb mushroom (wild mushrooms, or a combination of cultivated mushrooms including portobellas, cremini, oyster, shi)
  • 1tablespoon butter
  • 2tablespoons olive oil (or more as needed)
  • kosher salt, to taste
  • fresh ground black pepper, to taste
  • 14cup finely chopped shallots or 14 cup red onions or 14 cup white onion
  • 2teaspoons fresh thyme, chopped or 14 teaspoon dried thyme leaves
  • 12cup creme fraiche (I used recipe #171932) or 12 cup sour cream (I used Creme Fraiche)
  • 1tablespoon Italian parsley, chopped
  • 12 -18slices baguette, cut 1/2 inch on diagonal
  • 1 12tablespoons olive oil
  • 14cup parmigiano-reggiano cheese, grated


  1. Wipe any dirt from the mushrooms with a damp cloth or paper towel.
  2. Cut off any tough stems; half smaller mushrooms and quarter larger ones to make approximate even sizes.
  3. Heat butter and 1 Tbsp of the oil in a 10-12 inch deep saute pan over medium-high heat.
  4. Add the mushrooms and a pinch of salt and cook, stirring often, for 8-10 minutes, until any liquid has evaporated. If the mushrooms become too dry add a drizzle of oil.
  5. Transfer mushrooms to a cutting board, let cool a few minutes, and chop coarsely.
  6. Wipe out the pan and set over medium heat with 1 Tbsp olive oil.
  7. Add shallots, thyme and a pinch of salt and stir for a minute or two until shallots are tender and slightly golden.
  8. Return the mushrooms to the pan and stir in the creme fraiche to heat through without bringing to a simmer.
  9. Remove from the heat and stir in parsley and more salt and black pepper to taste.
  10. Note: If you are making the mushrooms in advance stir in only 1/4 cup of the creme fraiche now and add the other 1/4 cup when reheating later.
  11. Just before serving position oven rack 6 inches below the broiler element and heat broiler.
  12. Place baguette slices on a baking sheet and brush with olive oil; Broil for a minute or two to toast.
  13. Spread warm mushroom mixture over toasts and sprinkle on the Parmigiano-Reggiano.
  14. Note: Do not at any time overheat the mushroom mixture once the creme fraiche has been added or the cream will break.

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