1 box vanilla wafers
1 c. evaporated milk
1 (6 oz.) pkg. semi-sweet chocolate pieces
1 gallon vanilla ice cream
1 c. miniature marshmallows
1/4 tsp. salt

Stir over medium heat until marshmallows and chocolate melt and mixture thickens; cool. Line bottom and sides of a 9 inch plate or 2 1-quart refrigerator trays with vanilla wafers. Fill half full with ice cream; cover with half chocolate sauce. Repeat layers; garnish with pecans. Freeze.