I love pies, but don't know how to bake a pecan pie... pronounced peeeecan pie here in the south.
Well pecan pie is made with pecans (obviously), eggs, butter, and sugar.
I have had a Derby Pie, which sounds about the same, but it has chocolate in it I think.
There are quite a few variations, like you said with chocolate, but also with the sugar that they use including white sugar, brown sugar, maple syrup, or even honey.
oh brown sugar and honey!  I should have eaten lunch before we discussed pies!  I wonder how hard they are to bake.
I just ate so that helps haha. There are a lot of other flavors added like salt and vanilla too.
I have tried to make a lemon meringue pie before, but it looked like pea soup.  The meringue didn't rise or whip right.  Maybe a pecan pie is a safer bet. 
Probably, meringue is a bit more finicky. Another additive that sounds great and is fairly popular is bourbon whiskey.
Oh bourbon!  Sign me up!
vanilla ice cream, or hard sauce.
Origin.
Pecans are native to the southern United States. Archaeological evidence found in Texas indicates that Native Americans used pecans more than 8,000 years ago. The word "pecan" is a derivative of an Algonquin word, "pakani", referring to several nuts.
Sugar pies such as treacle tart were attested in Medieval Europe, and adapted in North America to the ingredients available, resulting in such dishes as shoofly pie, sugar pie, butter tart and chess pie.
Pecan pie
Pecan pie is a pie of pecan nuts mixed with a filling of eggs, butter, and sugar (typically corn syrup). Variations may include white or brown sugar, sugar syrup, molasses, maple syrup, or honey. It is popularly served at holiday meals in the United States and is considered a specialty of Southern U.S. origin. Most pecan pie recipes include salt and vanilla as flavorings. Chocolate and bourbon whiskey are other popular additions to the recipe. Pecan pie is often served with whipped cream,