Portabella Satay with Spicy Cucumber Relish and Peanut Sauce | Mushroom Recipes

Ingredients

• 1 English cucumber or 2-3 Persian cucumbers, cut into 1/4-inch dice
• 2-4 red Thai chiles or 1 Fresno chile or jalapeño, finely chopped
• 1 shallot, finely chopped
• 1/4 cup plus 2 tablespoons rice vinegar
• 1/4 cup granulated sugar
• 1 teaspoon kosher salt, divided
• 4 portabella mushrooms, wiped clean and bottom of stem trimmed
• Vegetable oil, for brushing
• 1/2 cup store-bought Asian-style peanut sauce