01 -
In a small bowl, whisk together mayonnaise, sour cream, garlic powder, onion powder, dried dill, parsley, salt, and black pepper. Add milk, one tablespoon at a time, until the dressing reaches the desired consistency. Cover and refrigerate until ready to serve.
02 -
In one bowl, combine the flour, cornmeal (if using), garlic powder, paprika, salt, and black pepper. In a separate bowl, whisk together the eggs and milk.
03 -
Dip each mushroom slice into the egg mixture, then dredge it in the flour mixture, ensuring each slice is fully coated. Place the coated mushrooms on a plate and let them rest for 5 minutes to help the coating adhere.
04 -
Heat about 2 inches of vegetable oil in a deep skillet or pot to 350°F (175°C). Fry the mushrooms in batches, avoiding overcrowding. Cook for 2-3 minutes or until golden brown and crispy. Use a slotted spoon to transfer fried mushrooms to a plate lined with paper towels to drain excess oil.
05 -
Arrange the fried mushrooms on a platter and serve alongside the chilled ranch dressing for dipping.