INGREDIENTS
1
Egg, large
1
Egg yolk, large
1 3/4 cups
All-purpose flour
1 tsp
Baking soda
3/4 cup
Brown sugar, light lightly packed
1/3 cup
Cocoa powder, unsweetened
2 tbsp
Cocoa powder, dark
1/4 cup
Cornstarch
1/4 cup
Granulated sugar
3/4 tsp
Kosher salt
12 oz
Semi sweet chocolate chips
1 1/2 tsp
Vanilla extract
3/4 cup
Butter, unsalted