2 cups chopped pecans
12 cup margarine
23 cup firmly packed brown sugar
1 (14 ounce) can sweetened condensed milk
1 teaspoon vanilla
Place pecans on a large glass plate and microwave on high power for 6 minutes, stirring at 2 minute intervals. Set aside. In an 8-cup microwave-safe bowl, microwave margarine on high power for 1 minute. Stir in brown sugar and condensed milk until blended. Microwave on high power for 7 minutes, stirring at 2 minute intervals. Beat with a wooden spoon for about 5 minutes or until stiff. Stir in vanilla and reserved pecans. Spread into a lightly greased 8-inch square glass pan. Chill until firm.Cut into squares.