01 -
Dissolve instant coffee in hot water and set aside to cool.
02 -
In a mixing bowl, beat softened unsalted butter and icing sugar until light and fluffy.
03 -
Incorporate the beaten egg into the butter-sugar mixture until fully combined.
04 -
In a separate bowl, whisk together flour, cornstarch, and ground cinnamon.
05 -
Fold the cooled coffee mixture into the creamed butter, then gradually add the dry ingredients until just combined.
06 -
Transfer the cookie dough to a piping bag fitted with a star tip and pipe onto a lined baking tray.
07 -
Place the piped cookies in the freezer for 5-10 minutes to firm up.
08 -
Preheat oven to 350°F (175°C) and bake the cookies for approximately 8 minutes until edges are lightly golden.
09 -
Once cooled completely, dip each cookie in melted dark chocolate and sprinkle with chopped pistachios.