In a bowl or stand mixer add cubed cold butter and beat on high until creamy for about 2 minutes
Add in brown sugar and granulated sugar and beat again for 2-3 minutes on high until well combined
Add in the egg and egg yolk along with the vanilla bean paste and mix on high for 3-4 minutes until everything is well incorporated
In a separate bowl add all purpose flour, baking powder, baking soda, salt, corn starch, and instant coffee and mix to combine
Gradually add dry ingredients to the wet mixture
Add in chocolate and mix until just combined, do not over mix the batter
Scoop 4 ounces tall cookie dough balls on baking sheet
Freeze the dough balls for at least 2 hours or overnight
Pre heat oven to 350°F
Place 3-4 cookies on a prepared baking sheet, leaving approximately 4 inches of space in between each cookie
Bake for 16-18 minutes or until the edges are golden and crispy and center is chewy and soft
Let cool completely before serving
