• 22 russet potato, scrubbed and dried
• 11 tbsp olive oil
• 5½ tsp kosher salt
• 2¾ tsp black pepper
• 22 tbsp butter, for serving, optional
• 0.3 l sour cream, for serving, optional
• 11 tbsp chives, chopped, for serving, optional

Metric measurements are approximate conversions.