1Place the escarole in a large, nonreactive bowl and set aside. Heat the oil in a large frying pan over high heat. When the oil smokes, add the mushrooms, garlic, shallot, and thyme and season generously with salt and pepper. Cook, stirring occasionally, until the mushrooms are browned and tender, about 5 to 6 minutes.
2Remove the pan from heat and transfer the mushrooms to the bowl with the escarole. Pour the vinegar into the pan. Stir, scraping up any browned bits from the bottom of the pan, then pour over the salad. Toss all the ingredients together, season with additional salt and pepper, and serve.
Finding the absolute best ingredients such a big part of Chef Antoine Westermann’s culinary career and the main drive behind all of his expertly crafted dishes. His relationship with farmers and purveyors are critical to his work as a chef. While visiting one of his providers in New York, the French chef describes his efforts to find the best local ingredients for his restaurant.