Step 1

Combine marshmallows, milk, butter, sugar and salt in saucepan.

Step 3

Cook and stir until mixture comes to full boil.

Step 5

Boil 5 minutes over medium heat, stirring constantly.

Step 7

Remove from heat and add chocolate pieces, beating until melted.

Step 9

Do not overbeat. Fold in vanilla and nuts. Pour into greased 9-inch square pan.

Step 11

Chill until firm. Makes 2½ pounds.