1/2 c. butter, softened
3/4 c. brown sugar, packed
1 egg
1 tsp. milk
1 tsp. vanilla extract
1 1/4 c. flour
1/2 tsp. baking powder
1/8 tsp. salt
1 c. semi sweet chocolate pieces
1/2 c. chopped nuts (optional)

In small mixing bowl, cream together butter and sugar, until fluffy. Add egg, milk and vanilla. Mix well. Stir together flour, baking powder and salt. Add to creamed mixture. Blend well. Spread in greased 8 inch square dish. Sprinkle with remaining 1/2 cup chocolate pieces. Microwave at High for 5 to 7 minutes, rotating dish 1/4 turn every 2 minutes until done. Cool and cut into bars.