Preheat oven to 375F. Line 2 -3 cookie sheet pan with baking paper.
In a bowl of a stand mixer on medium-high speed, mix the butter for 30 seconds.
Add sugar, espresso powder, salt and baking powder. Beat until combine stop mixer to scrape sides of the bowl,
Add the egg and vanilla and allow to combine.
Add the flour and mix just to combine.
Using a cookie presser with your choice designed, press cookies on the baking pan. Space each cookie 1 inch apart.
Bake for 10-12 minutes until edges of the cookies are firm and brown.
Dip ends of the cookies into the melted chocolate and then dip or sprinkle nuts.
If you do not have a cookie presser, use a cookie spoon (small) and press the top to flatten the cookie.
To avoid having dough stuck on your finger, dip your finger in a small amount of water.
Feel free to chose what ever cookie shape you desire, the quantity may vary because of that.