Marinated Mushrooms | America's Test Kitchen

Ingredients

• 1/2 cup extra-virgin olive oil, divided
• 2 pounds small white mushrooms, trimmed
• 1 1/4 teaspoon table salt, divided
• 1 large shallot, sliced thin
• 3 garlic cloves, crushed and peeled
• 1 teaspoon dried oregano
• 1/4 teaspoon red pepper flakes
• 1/4 teaspoon black pepper
• 3/4 cup red wine vinegar
• 1/2 cup water
• 1 tablespoon Dijon mustard
• 2 tablespoons minced fresh parsley