2 cups + 2 tablespoons all-purpose flour

1/2 teaspoons baking soda

1/4 cup dark cocoa powder

3 tablespoons instant coffee powder

1/4 teaspoon sea salt

1 stick (1/2 cup) of unsalted butter, melted and cooled for 10-15 minutes

1 cup brown sugar

1/2 cup sugar

1 egg + 1 egg yolk, at room temperature

2 teaspoons vanilla extract

1/4 cup coffee liqueur + 1 teaspoon (Godiva, Kahlua, etc)

1 cup chocolate chunks

sea salt for topping