Chocolate-Filled Hamantaschen

Bahan-bahan (30 porsi)

• 2 cups all-purpose flour, (spooned into measuring cup and leveled-off, plus more for rolling the dough (see note))
• ½ teaspoon baking powder
• ¼ teaspoon salt
• 1/2 cup (1 stick) unsalted butter, softened
• 1 cup sugar
• 1 large egg
• 1 large egg yolk
• 1½ teaspoons vanilla extract
• 3 tablespoons unsalted butter
• 2 oz unsweetened chocolate, (finely chopped)
• ¼ cup + 2 tablespoons sugar
• ½ teaspoon vanilla extract
• 1/8 teaspoon salt
• 1 large egg
• 1 tablespoon all-purpose flour