Chocolate Fudge Brownies with Chocolate Buttercream Frosting

INGREDIENTS

• :
• ¾ cup all-purpose flour
• 1 teaspoon baking powder
• ½ teaspoon salt
• ½ cup unsalted butter
• 3 ounces unsweetened chocolate
• ½ cup granulated sugar
• ½ cup light brown sugar
• 2 eggs
• 1 egg yolk
• 1 teaspoon vanilla extract
• ½ cup semisweet chocolate chips
• 6 tablespoons unsalted butter, at room temperature
• ¼ cup unsweetened cocoa powder
• ¼ teaspoon salt
• 1¼ cups powdered sugar
• 1 tablespoon milk
• ½ teaspoon vanilla extract
• ¼ cup heavy cream
• 3 tablespoons Ovaltine chocolate malt powder