Melted butter-1/2 cup
Brown sugar-3/4 cup
Maida-1 cup
Egg-1
Vanilla essence-1tsp
Salt-1/4tsp
Baking soda-1/2tsp
Chopped walnuts-1 cup
White chocolate chips-4oz
Dark chocolate chips-4oz
Method
Beat butter,sugar,essence & egg.Slowly add the maida,salt,baking soda & mix it well.Add 1/2 of the both chocolate chips & walnuts.Pour it on a greased square/rectangle tray.Bake it at 350 deg. for 20 minutes or till its light brown colour & cooked.While hot sprinkle the remaining chocolate chips on top,leave it to melt. Swirl chocolates with a knife to marbleize. Sprinkle remaining 1/2 cup walnuts & press it slightly. Cool in pan until firm, then cut into bars.
Courtesy:cookingontheside