2 1/4 c. all-purpose flour
1 tsp. baking soda
1 tsp. salt
1 c. butter, softened
2 eggs
3/4 c. granulated sugar
3/4 c. packed brown sugar
1 tsp. vanilla extract
12 oz. semi-sweet chocolate chips
1 c. pecans or walnuts, chopped

TOPPING:

6 oz. chocolate chips
1 c. mini marshmallows
1 c. pecan pieces

Preheat oven to 350 degrees. Combine flour, soda and salt in bowl. In another bowl, cream butter and sugar until blended. Beat in eggs and vanilla. Mix in dry ingredients with chocolate chips and nuts. Pat into 14 inch pizza pan sprayed with nonstick. Bake 25 minutes. Remove and immediately sprinkle topping. Let stand 5 minutes, then swirl with spatula. Cool completely. Cut into wedges.