Ingredients

• 1 cup all-purpose flour
• 1 cup bread flour
• 1 tsp salt
• 1 tsp baking soda
• 1 cup unsalted butter, browned and cooled
• 1 cup white sugar
• 1 cup dark brown sugar
• 1 tsp vanilla extract
• 1 tsp espresso powder
• 1 large egg
• 1 egg yolk
• 1 cup chocolate chips
• 1 cup dark chocolate chunks