01 - Using a mandoline slicer or sharp knife, cut the potatoes into thin, even slices approximately 1/8 inch thick.
02 - Submerge the potato slices in cold water for 10 minutes to draw out excess starch. Drain thoroughly and pat completely dry with paper towels to ensure crisp frying.
03 - Pour vegetable oil into a deep fryer or large heavy-bottomed pot and heat to 350°F (175°C). Monitor the temperature closely for consistent results.
04 - Carefully lower potato slices into the hot oil in small batches. Fry for 3 to 4 minutes per batch until golden brown and crisp. Remove with a slotted spoon and drain on paper towels.
05 - In a small saucepan, melt the butter over low heat. Pour in the hot sauce and whisk continuously until the mixture is smooth and heated through.
06 - While still warm, toss the fried chips with garlic powder, smoked paprika, salt, black pepper, and cayenne pepper if using, coating evenly.
07 - Drizzle the prepared Buffalo sauce over the seasoned chips or gently toss them to ensure an even, generous coating.
08 - Transfer the chips to a serving platter immediately. Top with blue cheese crumbles or a drizzle of ranch dressing and scatter fresh chives or green onions over the top, if desired.