I make mine less sweet and more Irish as an equal parts cocktail with Irish whiskey and coffee liqueur:

1 oz Irish whiskey
1 oz coffee liqueur
1 oz Irish cream
1 oz espresso

You can also try blanco or reposado tequila and light or dark rum in place of the whiskey for interesting variations.

This was so sweet! Amazing for a dessert.

First of all, I like espresso, I really like espresso !
So tonight I decided to make the Irish espresso martine with a double shot of espresso.
For me it is much better than with one shot

I am going to make this for my wife.

Love this twist on the popular Espresso Martini. At the end of the night, this is subtle, smooth and not such a smack in the face as some can be. Beautifully subtle and elegant.