Sweet-Bean Piroshki Recipe | Epicurious

Ingredients

• 1 large baking potato, peeled and cut into chunks
• 3 tablespoons unsalted butter
• 1 medium onion, peeled and chopped
• 2 scallions, chopped
• 3 tablespoons fresh chopped dill
• 1 teaspoon salt
• 1/4 teaspoon white pepper (black works, too)
• 1 15-ounce can kidney beans, drained
• 2 15-ounce prepared piecrusts
• 1 large egg, mixed with 1 tablespoon water