Chocolate Fudge Brownies

Bahan-bahan (20 porsi)

• 3/4 cup all purpose flour
• 1 teaspoon baking powder
• 1/2 teaspoon salt
• 1/2 cup (1 stick) unsalted butter
• 3 ounces unsweetened chocolate, (chopped)
• 1/2 cup packed brown sugar
• 1/2 cup granulated white sugar
• 2 large eggs
• 1 large egg yolk
• 1 teaspoon vanilla extract
• 1/2 cup semisweet chocolate chips
• 2/3 cup powdered sugar
• 2 tablespoons unsweetened cocoa powder
• 1/4 teaspoon vanilla extract
• 4 to 5 teaspoons hot water ((or more, as needed))