Peanut Butter Chocolate Chip Bars – Brownie Mischief

Ingredients

• 1 cup (128g) all purpose flour, sifted (plus 1 teaspoon for the chocolate chips)
• 2 tablespoons (20g) cornstarch
• 1 teaspoon baking powder
• 1/4 teaspoon fine sea salt
• 1/4 cup (57g) unsalted butter, room temperature
• 1/2 cup (128g) creamy peanut butter
• 3/4 cup (150g) packed brown sugar
• 1/4 cup (50g) granulated sugar
• 2 large eggs, room temperature
• 1 1/2 teaspoons pure vanilla extract
• 1 cup (170g) semisweet chocolate chips
• 1/2 cup (71g) semisweet chocolate, chopped
• 2 tablespoons (28g) unsalted butter
• 1 teaspoon light corn syrup