Chewy Fudgy Frosted Brownies

Bahan-bahan (16 porsi)

• 1/2 cup (8 Tbsp; 113g) unsalted butter
• two 4-ounce (226g) semi-sweet chocolate bars, coarsely chopped*
• 3/4 cup (150g) granulated sugar
• 1/4 cup (50g) packed light or dark brown sugar
• 3 large eggs
• 1 teaspoon pure vanilla extract
• 2/3 cup (84g) all-purpose flour (spooned & leveled)
• 2 Tablespoons (10g) unsweetened natural or dutch-process cocoa powder (I prefer dutch-process)
• 1/4 teaspoon salt
• 1 cup (180g) semi-sweet chocolate chips
• 1/2 cup (8 Tbsp; 113g) unsalted butter, softened to room temperature
• 1 and 1/2 cups (180g) confectioners’ sugar
• 1/3 cup (27g) unsweetened natural or dutch-process cocoa powder (I prefer dutch-process)
• 3 Tablespoons (45ml) heavy cream or milk, slightly warm (see Note)
• 1/2 teaspoon pure vanilla extract
• pinch of salt, to taste