Line cookie sheet with parchment paper and set aside.
In a bowl, cream together butter, brown sugar, and sugar until creamy.
Add in egg, yolk, and vanilla and beat to combine.
Add in instant coffee, baking soda, cornstarch, salt, and flour and beat until a soft dough forms.
Using a teaspoon cookie scoop, scoop dough and place on baking sheet.
Bake 9-12 minutes. Immediately after baking, press one wafer and three chips into the cookie for the pad and claws.
Repeat steps with remaining dough and cookies. Let cool for 30 minutes before enjoying