Preheat the oven to 180 ° C. Line two trays with baking paper.
Stir the butter until creamy. Add the sugar and stir until you have a homogeneous mass. Then add the egg, coffee and cinnamon. Mix the flour, salt, baking powder, pecans and dark chocolate together. Mix everything well with the butter and egg mixture.
Use a teaspoon to place small heaps 5 cm apart on the trays and bake on the middle rack for 10-15 minutes.