Brownies Diabolique

From the kitchen of Auntie Bucksnort.  

Cream:

¾ cup butter

1 ¼ cups sugar

2 eggs

2 tbl. vanilla

Sift & fold in:

1 cup flour

¼ cup cocoa

½ tsp. salt

Fold in:

2 ½ cups chocolate chips

Bake 350 for 40 minutes