Ingredients

1/2 cup butter, softened3/4 cup packed brown sugar1 large egg1 tablespoon milk1 teaspoon vanilla extract1-1/4 cups all-purpose flour1/2 teaspoon baking powder1/8 teaspoon salt1 cup semisweet chocolate chips, divided1/2 cup chopped walnuts

Preparation

In a bowl, cream butter and brown sugar. Add egg, milk and vanilla; mix well. Combine flour, baking powder and salt; add to creamed mixture. Stir in 1/2 cup chocolate chips and walnuts. Spread into a greased 8-in. square microwave-safe dish. Sprinkle with remaining chocolate chips. Microwave, uncovered, on high for 3-1/2 minutes or until bars test done, rotating a quarter turn every minute. Cool before cutting.