My favorite Peanut Butter Fantasy Fudge

3 cups sugar

3/4 cup margarine

2/3 cup evaporated milk

1 cup creamy peanut butter

1 (7 ounce) jar marshmallow cream

1 pkg. Reeces Pieces

1 cup chopped walnuts (optional)

1 tablespoon vanilla

 Combine sugar, margarine, and milk in heavy 2 1/2 quart saucepan. Bring to full rolling boil, stirring constantly.

 Reduce heat to medium. Continue boiling for 5 minutes, stirring constantly.

 Remove from heat, and stir in peanut butter and Reeces Pieces.

 Add marshmallow cream, nuts, and vanilla. Beat until blended (I use an electric mixer on this).

 Pour into greased 13 x 9 inch baking pan.

 Let cool, and cut into 1-inch squares.