Creating fried sliced mushrooms with ranch is a simple process if you follow these steps:

1. Prepare the Mushrooms: Begin by cleaning the mushrooms gently with a damp cloth. Slice them to about ¼ inch thick for even cooking.
2. Set Up Breading Station: In a bowl, mix flour, garlic powder, onion powder, paprika, salt, and pepper. In another bowl, pour in the buttermilk.
3. Dredge the Mushrooms: Dip each mushroom slice in the buttermilk, allowing any excess to drip off, then coat in the flour mixture. Ensure they are evenly covered.
4. Heat the Oil: In a deep skillet or fryer, heat oil over medium-high heat until it reaches 350°F (175°C).
5. Fry the Mushrooms: Carefully place the coated mushroom slices into the hot oil in batches. Fry until golden brown, usually about 3-5 minutes.
6. Drain Excess Oil: Using a slotted spoon, transfer the fried mushrooms to a plate lined with paper towels to absorb any excess oil.
7. Serve Warm: Arrange the fried mushrooms on a serving platter. Serve with a bowl of ranch dressing on the side for dipping.

These clear instructions will guide you in crafting this amazing appetizer effortlessly.