1 (12 oz.) pkg. semi-sweet chocolate chips
1 c. butter
4 eggs
2 c. sugar
3 c. flour
1 tsp. baking powder
1 tsp. salt
1 tsp. vanilla
3 c. miniature marshmallows
1 (6 oz.) pkg. pecans - chopped (1 1/2 c.)
1 (6 oz.) pkg. semi-sweet chocolate chips

Melt 12 ounce package chocolate chips and butter in medium saucepan over medium-low heat, stirring occasionally; cool. In mixer bowl, beat chocolate mixture, eggs, sugar. Blend in flour, baking powder, salt, vanilla. Spoon into greased 9 x 13 inch baking pan. Bake at 375 degrees for 25 minutes. Remove from over, sprinkle with marshmallows, pecans, and remaining chocolate chips. Continue baking until golden (15 to 20 minutes). Cool. Cut.