• 50 russet potato, scrubbed and dried
• 25 tbsp olive oil
• 12½ tsp kosher salt
• 6¼ tsp black pepper
• 50 tbsp butter, for serving, optional
• 0.7 l sour cream, for serving, optional
• 25 tbsp chives, chopped, for serving, optional

Metric measurements are approximate conversions.