Cranberry Dulce de Leche Hand Pies

Bahan-bahan (12 porsi)

• 2 cups cranberries (fresh or frozen )
• 1/2 cup sugar
• 3 tablespoons water
• 1 tablespoon cornstarch
• 1 tablespoon water (cold)
• 2 cup flour (spooned and leveled)
• 1/2 teaspoon salt
• 1/2 teaspoon baking powder
• 1 cup unsalted butter (cut into pieces)
• 1/2 cup sour cream
• 13 ounces Dulce de Leche (*)
• 1 large egg
• 1 tablespoon water
• coarse sugar (for sprinkling)