Peanut Butter Cookie Dough Brownies

INGREDIENTS

• 1/2 cup packed light brown sugar
• 2 large eggs
• 1/2 teaspoon salt
• 1/2 cup plus 2 tablespoons all-purpose flour
• 3/4 cup semisweet chocolate chunks
• 2 (1-ounce) squares unsweetened chocolate
• 1/2 teaspoon baking powder
• 1/4 cup heavy whipping cream
• 1 teaspoon vanilla extract
• 2 tablespoons milk
• 1 cup sugar
• 1/2 cup unsalted butter
• 1/4 cup coarsely chopped salted peanuts
• 1/2 cup creamy peanut butter
• Nonstick cooking spray
• 3/4 cup dark chocolate chips
• 1/4 cup unsalted butter, softened