In a large bowl, combine the flour, sugar and salt. Cut in butter until crumbly. Press onto the bottom and up the sides of two greased 15-in. x 10-in. x 1-in. baking pans. Bake at 350° for 18-22 minutes or until crust edges are beginning to brown and bottom is set.
For filling, combine the eggs, sugar, corn syrup, butter and vanilla in a large bowl. Stir in pecans. Pour over crust.
Bake 25-30 minutes longer or until edges are firm and center is almost set. Cool on wire racks. Cut into bars. Refrigerate until serving.Yield: 6-8 dozen.