01 -
In a small mixing bowl, combine mayonnaise, sour cream, garlic powder, onion powder, dried dill, parsley, salt, and black pepper. Add milk one tablespoon at a time, whisking until a smooth, pourable consistency is achieved. Cover and refrigerate until serving.
02 -
In a shallow bowl, mix together flour, cornmeal (if using), garlic powder, paprika, salt, and black pepper. In a separate bowl, whisk eggs with milk until well combined.
03 -
Dip each sliced mushroom first into the egg mixture, ensuring even coverage. Dredge immediately in the flour mixture, pressing gently so the coating adheres. Set coated mushrooms on a plate and let rest 5 minutes.
04 -
Pour enough vegetable oil into a deep skillet or saucepan to reach 5 cm depth. Heat oil to 175°C. Fry mushrooms in batches without crowding, cooking for 2–3 minutes until golden and crisp. Remove with a slotted spoon and drain on paper towels.
05 -
Arrange fried mushroom slices on a platter. Serve immediately with chilled ranch dressing for dipping.