1/2 c. butter
3/4 c. brown sugar, firmly packed
2 lg. eggs, lightly beaten
1 tsp. vanilla
1 c. nuts, chopped
1 c. semi-sweet chocolate chips
1/2 c. all-purpose flour
1 tsp. baking powder

Place butter in 2-quart micro-proof bowl. Microwave at power level 8 for 1 minute. Add brown sugar, eggs, and vanilla. Stir until blended. Add nuts, chocolate chips, flour, and baking powder; mix well. Spread in 9 inch round micro-proof baking dish. Microwave at power level 10 for 3 1/2 minutes. Rotate dish one-quarter turn. Microwave at power level 10 for 4 to 5 more minutes or until bars test done. Let stand in pan until cool. Cut into 24 bars.