Ingredients: 1/2 cup butter, softened
1 cup sugar
4 egg whites (or use 2 eggs or to make it eggless - substitute 1/2 cup of any egg substitute you desire like vegetable oil, yogurt, Ener-G etc)
1 cup (8 ounces) plain yogurt
1 tsp vanilla extract
2 cups all purpose flour (maida)
1 tsp baking soda
1/2 tsp baking powder
1/2 tsp salt
3/4 cup semisweet chocolate chips
For the topping:
1 tsp cinnamon powder
3-4 tbsp chopped walnuts
2 tbsp brown sugar
1/4 cup semisweet chocolate chips