Chocolate Brownies

Ingredients ½ cup dairy-free margarine ½ cup raw sugar ¼ cup brown sugar ¾ cup plain flour ½ cup cocoa ¼ cup soy milk or other dairy-free milk 1 ripe banana, mashed 1 tsp vanilla essence 1 tsp salt ½ cup dairy-free choc chips  (optional) ½ cup crushed pecans or other...