Chocolate Chunk Pecan Pie (Melodie)

1 pkg. (8 squares) semi-sweet baking chocolate or 2 cups semi-sweet chocolate chips

2 TBS. butter or margarine

1/4 cup firmly packed light brown sugar

1 cup Karo light corn syrup

3 eggs slightly beaten

1 tsp. vanilla

1 1/2 cup pecan halves

1 unbaked pastry shell

Preheat oven to 350°.  Coarsely chop 4 squares of the chocolate and set aside (or set aside half of the chips if using chocolate chips).  Microwave remaining chocolate and butter until chocolate is melted.  Stir sugar, corn syrup, eggs and vanilla into mixture until well blended.  Stir in pecans and chocolate pieces.  Fill pastry shell and bake 55 minutes or until knife comes out clean.