Step 1

Combine sugar, margarine, and milk in heavy 2.5qt saucepan; bring to full rolling boil, stirring constantly.

Step 3

Continue boiling 5 min over medium heat or until candy thermometer reaches 234 F degrees stirring constantly to prevent scorching.

Step 5

Remove from heat; stir in chips until melted.

Step 7

Add marshmallow creme, nuts if using, and vanilla; beat until well blended.

Step 9

Pour into greased 9x13 inch pan.

Step 11

Cool at room temperature, cut into squares. Makes approx 3lb.