Step 1

Combine sugar, margarine and milk in heavy 2 1/2 quart saucepan.

Step 2

Bring to a full rolling boil, stirring constantly.

Step 3

Continue boiling 5 minutes over medium heat, stirring constantly to prevent scorching.

Step 4

Remove from heat; stir in chocolate pieces until melted.

Step 5

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

Step 6

Pour into parchment lined 8x8 or 9x9 pan.

Step 7

Cool at room temperature; cut into squares.

Step 8

Makes approximately 3 lb.