INGREDIENTS
1 cup
bread flour
3/4 cup
all-purpose flour
2 tsp
kosher salt or 1½ teaspoon table salt
1 tsp
baking soda
1 cup
unsalted butter
2 tbsp
cold water
1 cup
dark brown sugar
1/2 cup
white sugar
2 tsp
vanilla extract
1 tsp
espresso powder
1
large egg
1
large egg yolk
1/2 cup
semisweet chocolate chips
5 oz
dark chocolate, chopped