Chocolate Marshmallow Icing

Directions

1. 1
   Melt butter and chocolate together over hot water.
2. 2
   Pour hot milk over sugar and salt until sugar is dissolved.
3. 3
   Add chocolate mixture and beat until perfectly smooth.
4. 4
   If icing must be thinned, add 1 tablespoon hot milk.
5. 5
   Cut marshmallows into thinnest possible pieces.
6. 6
   Cover bottom layer with chocolate icing, then marshmallows, then more icing.
7. 7
   Put top layers on and carefully press two layers together.
8. 8
   Cover top and sides with chocolate.
9. 9
   Cut marshmallows thinly as before and place on chocolate, then remaining icing.