• 26 russet potato, scrubbed and dried
• 13 tbsp olive oil
• 6½ tsp kosher salt
• 3¼ tsp black pepper
• 26 tbsp butter, for serving, optional
• 0.4 l sour cream, for serving, optional
• 13 tbsp chives, chopped, for serving, optional

Metric measurements are approximate conversions.