Heat oven to
350 degrees. Grease 15x10x1 baking pan.
In a medium
sausepan, combine chocolate chips, 2 tablespoons of butter, and sweetened
condensed milk. Cook over LOW heat until chocolate is melted and
mixture is smooth, stirring constantly. Set aside.
Melt 1 cup butter (margerine) in large saucepan; remove from heat. Add brown sugar and eggs; blend well. Add flour, coconut, pecans, salt and vanilla; mix well. Spread half of batter in greased pan. Drop chocolate mixture by tablespoonfuls over batter; carefully spread to cover. Drop remaining batter by teaspoonfuls over chocolate mixture; swirl slightly with the tip of knife to marble mixture.
Bake at 350
degrees for 25 to 35 minutes or until golden brown and center is set.
Cool; cut into bars. Makes approx. 48 small bars.