Preheat your oven to 350°F (175°C).
In a large bowl, cream together the softened butter, granulated sugar, and brown sugar until smooth.
Add the egg, brewed coffee, and vanilla extract, mixing until well combined.
In another bowl, whisk together the flour, baking soda, and salt.
Gradually add the dry ingredients to the wet ingredients, mixing until just combined.
If desired, fold in the chocolate chips.
Drop rounded tablespoons of dough onto a baking sheet lined with parchment paper.
Bake in the preheated oven for 10-12 minutes, or until the edges are lightly golden.
Remove from the oven and let cool on the baking sheet for a few minutes before transferring to a wire rack.