• 59 russet potato, scrubbed and dried
• 29½ tbsp olive oil
• 14¾ tsp kosher salt
• 7⅓ tsp black pepper
• 59 tbsp butter, for serving, optional
• 0.9 l sour cream, for serving, optional
• 29½ tbsp chives, chopped, for serving, optional

Metric measurements are approximate conversions.