Chocolate Chess Squares

These are amazing! Very gooey and chocolatey and will satisfy your chocolate cravings instantly.
1 cup flour
1/3 cup sifted powdered sugar
1/2 cup butter (very cold)
1 1/2 cups sugar
3 tables cocoa
1/8 teas salt
2 tables butter, melted
2 large eggs, beaten
1 (5 oz) can evaporated milk
1 teas vanilla
1/2 chopped pecans (opt)
Combine flour and powdered sugar; cut in 1/2 cup butter with a pastry blender until crumbly. Press mixture evenly into a 9 in square pan. Bk at 350 for 15 min or until lightly browned.
Combine sugar, cocoa and salt. Add 2 tables butter and eggs; beat 2 1/2 min at medium speed with mixer. Add milk and vanilla, mixing well. Stir in pecans; pour mixture over crust.
Bake at 350 for 40 to 45 min or until middle is set. Cool completely on a wire rack. Cover and chill at least 2 hrs. Cut into squares. Store in frig. Yields: 3 dz.