This marinated appetizer will keep for a long time and is better if made up a day in advance to allow the flavors to be absorbed by the mushrooms. It should be transported in a cooler but is best served at room temperature.
Ingredients
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4 canned jalapeños, drained and chopped, liquid reserved
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½ lemon
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1 ½ pounds button mushrooms, sliced
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1 tablespoon Dijon mustard
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1 tablespoon reserved jalapeño liquid
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1 tablespoon distilled vinegar
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1/3 cup vegetable oil
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1/4 teaspoon ground cayenne chile
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Salt and freshly ground black pepper
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2 ounces Roquefort or Bleu cheese, crumbled
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2 green onions, sliced including some of the green
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Garnish: Chopped parsley
Instructions
Place the mushrooms in a bowl and squeeze the lemon over them to keep them from turning brown.
In another bowl, whisk the mustard, jalapeno liquid, vinegar, and 1 tablespoon water together until well mixed. Whisk in the oil in a thin stream to form an emulsion. Season the dressing with the cayenne, salt, and pepper. Stir in the jalapeños, cheese, and onions.
Pour the dressing over the mushrooms and toss well to coat. Allow the mushrooms to sit at room temperature for an hour to blend the flavors.