Mushrooms with Béarnaise Yogurt

Grilled maitake or oyster mushrooms served over a creamy béarnaise-style yogurt sauce flavored with tarragon, shallots, and white wine vinegar. A elegant vegetarian dish that combines the earthy flavor of mushrooms with a lighter version of the classic French sauce.

4 servings
23 min

Ingredients

  • 1 whole shallot
  • 2 sprigs tarragon
  • ½ teaspoon black peppercorns
  • 1 tablespoon white wine vinegar
  • 1 cup plain whole-fat Greek yogurt
  • 2 tablespoons fresh lemon juice
  • 1 tablespoon olive oil
  • to taste Kosher salt
  • 1 tablespoon coriander seeds
  • 1 teaspoon kosher salt
  • 1 teaspoon mustard powder
  • 1 teaspoon paprika
  • 12 ounces maitake or oyster mushrooms
  • 2 tablespoons olive oil
  • to taste tarragon sprigs
  • 1 piece spice mill or mortar and pestle

Cooking Instructions

  1. 1.

    Bring shallot, tarragon sprigs, peppercorns, vinegar, and 1/3 cup water to a boil in a small skillet over medium heat and cook until liquid is nearly evaporated, 8-10 minutes. Let cool. Discard tarragon sprigs and transfer mixture to a small bowl. Add yogurt, lemon juice, oil, and chopped tarragon and mix well; season with salt.

    10 min

  2. 2.

    Prepare a grill for medium heat. Finely grind coriander seeds in spice grinder or with mortar and pestle. Transfer to a small bowl and mix in salt, mustard powder, and paprika.

    5 min

  3. 3.

    Drizzle mushrooms with oil in a medium bowl; gently toss to coat. Season with rub. Grill, turning occasionally, until browned and tender, 6-8 minutes. Serve over yogurt topped with tarragon.

    8 min

  4. 4.

    Yogurt can be made 3 days ahead. Cover and chill.