Combine flour, sugar and salt in large bowl; cut in 3/4 cup butter thoroughly. Blend until mixture resembles very fine crumbs. Press mixture evenly into a greased 13 x 9-inch pan. (Use a piece of plastic wrap to press crumb mixture firmly in pan.) Bake at 350 degrees for 17 to 20 minutes or until lightly browned
Combine brown sugar, corn syrup and 1/2 cup butter in a saucepan; bring to a boil over medium heat, stirring gently.
Remove from heat. Stir one-fourth of hot mixture into beaten eggs; add to remaining hot mixture. Stir in pecans and vanilla. Pour filling over crust
Bake at 350 degrees for 34 to 35 minutes or until set.
Cool completely in pan on a wire rack. Cut into bars
Recipe submitted by florentine on 9/26/00