Salted Milk Chocolate and Peanut Butter Blondies

Bahan-bahan (24 porsi)

• 1 1/2 sticks (3/4 cup) salted butter
• 3/4 cup creamy peanut butter
• 1 cup light brown sugar
• 1/2 cup granulated sugar
• 2 eggs
• 1 tablespoon vanilla extract
• 2 cups all-purpose flour
• 1 teaspoon baking powder
• 1 cup semi sweet chocolate chips
• 2 -3 ounces milk chocolate chunks
• flaky sea salt