Pecan Bark

1 package white chocolate candy melts
2 Tablespoons margarine
11/2 cups chopped pecans
In a Pyrex dish, spread pecans as thinly as possible. Microwave 1 1/2 minutes then stir. Return dish to microwave and cook 1 12/2 minutes longer. Remove and stir well. Set aside. Empty candy melts in Pyrex bowl and microwave for 1 1/2 minutes, remove and stir until very smooth. Then return to microwave and cook 1 more minute. Stir well then add pecans. Spread very thin on cookie sheet which has been covered with wax paper. Refrigerate 10 minutes, take out and break into pieces.