Eggless yogurt Chocolate Brownies

Yogurt brownies|Chocolate brownies, almost fat free brownies as no butter or oil is used in this recipe.. Plain flour 3/4 cup Sugar 1/2 cup + 2 tblsp Cocoa powder 1/2 cup Baking soda 1/2 tsp Semi sweet chocolate chips 1/2 cup Yogurt 1 cup ( i used Alvas Natural yoghurt) Water 1/2 cup Chopped nuts 1/4 cup (optional) Method: In a microwave safe bowl add the semi sweet chocolate chips. Melt this.