In a large bowl, beat eggs. Add molasses, corn syrup, orange juice, orange peel and vanilla; beat until well blended. Stir in pecans. I like to run the pecans through a nut mill when I make pecan pies because it makes a wonderful crunchy top - it is good either way - with pecan halves or the chopped pecans.
Bake 30 - 45 minutes or until filling sets. Cool on a wire rack. Serve with whipped cream if desired.