Heat the 2 teaspoons extra virgin olive oil in a large skillet over medium heat. Add the chopped 1 shallot, sautéing for 1 minute. Stir in the minced 2 cloves fresh garlic, sauteing for another minute.
Add the sliced 16 ounces cremini mushrooms and, allowing them to sweat out liquid for approximately 5 minutes, then add the 2 tablespoons unsalted butter, sauteing for another 2-3 minutes. Pour in the ½ cup white wine, 2 tablespoon Worcestershire sauce, 2 tablespoons dark brown sugar, 2 teaspoons dried thyme leaves, 2 teaspoon Dijon mustard, ½ teaspoon coarse sea salt and ½ teaspoon freshly ground black pepper.
Reduce to low heat and simmer for 10 minutes, until the sauce reduces and thickens. Keep warm until you are ready to serve.
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