Chocolate Chip Brownies

I got this recipe from Laura Dagley, a fellow Portuguese teacher at the MTC. --Stacy

Ingredients:

1 cup softened butter
3 cups sugar
6 eggs
1 T vanilla
2 1/4 cups flour
1/2 cup baking cocoa
1 tsp. salt
1 cup chocolate chips
1 cup vanilla baking chips
1 cup chopped walnuts

Instructions:

Cream butter and sugar. Add eggs and vanilla; mix well. Combine flour, cocoa, baking powder, and salt. Stir into creamed mixture just until blended. Pour into greased 15x10x1 pan. Sprinkle with chips and nuts. Bake at 350° F for 30-35 minutes.