Kue Karamel Coklat Lengket

Bahan-bahan (12 porsi)

• 2 cups flour
• 1 ½ cups white sugar
• 2/3 cup unsweetened cocoa powder
• 1 ½ teaspoon baking soda (divided)
• 1 ¾ teaspoon salt (divided)
• 2/3 cup butter flavored shortening
• 1/2 cup unsalted butter, very soft or melted
• 1/2 cup milk
• 1 cup salted butter
• 2 cups packed light brown sugar
• 1/2 cup light corn syrup
• 1 cup chocolate chips (I used dark chocolate)