Preheat oven to 400 F. Grease 2 baking sheets and set aside.

In a large bowl, combine flour, sugar, cocoa powder, instant espresso, baking powder, baking soda and salt. Stir well. Add margarine and work in with fingertips until it resembles a coarse meal..

In a small bowl, combine soy milk and eggs and whisk. Add to flour mixture and stir until dough comes together. Add chocolate and stir just until evenly distributed.

Divide dough into 12 large rounds on prepared sheet pans and bake for 18 to 20 minutes or until top is crusty looking. Cool on a wire rack for 30 minutes before serving.