01 -
Mix up mayonnaise, sour cream, dill, parsley, onion powder, garlic powder, salt, and pepper in a small bowl. Slowly stir in the milk, one spoon at a time, until it's the way you like it. Pop it in the fridge till you're ready to dig in.
02 -
In one bowl, stir together the cornmeal (if using), all-purpose flour, garlic powder, paprika, pepper, and salt. In another container, whisk the milk and eggs until combined.
03 -
Dunk the mushroom pieces into your egg-milk mix, then toss them in the flour coating so every bit is covered. Let them sit out for 5 minutes so the breading sticks better.
04 -
Pour a couple of inches of oil into a deep pot or pan and heat it to 350°F (175°C). Cook the mushroom slices in batches—don’t overcrowd! Let them sizzle for 2-3 minutes or until they're crispy and a deep golden color. Use a slotted spoon to scoop them onto paper towels to soak up any extra grease.
05 -
Arrange those crispy mushrooms on a tray and serve with the chilled ranch dip on the side.