Ingredients:

• 1 pound small or medium cremini or button mushrooms
• 3/4 cup lager-style beer
• 1/2 cup buttermilk
• 1 tablespoon soy sauce
• 1 large egg
• 1 1/4 cups all-purpose flour, divided
• 1 teaspoon kosher salt
• 1/2 teaspoon cracked black pepper
• 1/2 teaspoon garlic powder
• 6 cups canola oil, more as needed
• 1 cup panko breadcrumbs
• Flaky salt, as needed
• Fresh thyme leaves, for serving