Ingredients

• 4 small slender sweet potatoes (2 lb total)
• 3 tablespoons unsalted butter, softened
• 2 scallions, finely chopped
• 2 tablespoons finely chopped fresh cilantro
• 1/2 teaspoon salt
• 1/4 teaspoon black pepper

Instructions

1. Prick potatoes several times with a fork and put directly on oven rack in middle position. Put a sheet of foil on lower rack (to catch any drips) and heat oven to 450°F. Bake potatoes until soft when squeezed, 30 to 35 minutes.
2. Mash together butter, scallions, cilantro, salt, and pepper. Slit potatoes lengthwise and put some butter mixture in center of each.