1 ounce dried porcini mushrooms
3 cloves garlic, peeled
1/2 cups flat-leaf parsley, chopped
1/2 teaspoon salt, plus more to taste
1 long Italian or French bread, sliced 1/4 inch thick on the diagonal
Extra-virgin olive oil, for bread
1/2 tablespoon fresh thyme leaves, (about 5 sprigs)
3 tbsps. unsalted butter, or as needed
3 tbsps. olive oil, or as needed
2 shallots, peeled and finely chopped
freshly ground black pepper
1/2 cups dry white wine
2 lbs. assorted wild mushrooms, such as shiitake, cremini, oyster, and chanterelle, cut into 3/8-inch slices
In a bowl, combine dried porcini and 1-1/2 cups hot water. Let sit until soft, about 15 minutes. Remove from soaking liquid.
Carefully pour off liquid, leaving sediment in bowl; reserve liquid.
Coarsely chop porcini.
Chop together garlic, parsley, and salt.
Make crostini by grilling or toasting bread under broiler. Brush lightly with extra-virgin olive oil.
Season with salt and pepper.
In a large saute pan, heat 1 tablespoon butter and 1 tablespoon oil over medium-low heat.
Add porcini, shallots, and thyme, and cook, stirring often, until shallots wilt, about 10 minutes.
Season well with salt and pepper.
Add wine, and cook over medium-high heat until liquid is almost completely reduced, 5 to 7 minutes.
Add reserved porcini liquid, and cook until almost completely reduced again, 5 to 7 minutes.
Remove from heat, transfer to a small bowl, and set aside. Rinse skillet, dry, and return to high heat. Starting with the firmest, cook wild mushrooms in two batches using a tablespoon of butter and oil for each batch. Season well with salt and pepper, and reduce heat to medium. Cook, stirring often, until mushrooms are nearly tender, 5 to 10 minutes.
Keep in a large bowl while second batch cooks. Return all the mushrooms to the pan. Add porcini and parsley mixtures. Cook over medium-high heat until garlic gives off an aroma, 2 to 3 minutes.
Adjust seasonings, and remove pan from heat.
Transfer mushrooms to a bowl and serve with crostini, or spoon a bit of the mushroom mixture on each slice of crostini and arrange on a plate.
Makes 15 servings.