• 54 russet potato, scrubbed and dried
• 27 tbsp olive oil
• 13½ tsp kosher salt
• 6¾ tsp black pepper
• 54 tbsp butter, for serving, optional
• 0.8 l sour cream, for serving, optional
• 27 tbsp chives, chopped, for serving, optional

Metric measurements are approximate conversions.