Preheat the oven to 350 degrees.

Whisk the flour, baking soda, and salt together in a large mixing bowl. Combine the margarine, white sugar, brown sugar, soy milk, and vanilla extract in a separate bowl. Add the wet ingredients to the dry ingredients to form a dough.

Add the chocolate chunks. Pinch off pieces of the dough and drop them on a lightly greased baking sheet. Bake for 15 to 20 minutes, or until golden brown.