|Source||Linda Stoops (1993)|
Cook sugar, milk, butter and salt over medium heat, stirring constantly until it melts, then occasionally until it starts to boil. Let bubble for 4 minutes, turning down heat to prevent boil-over, if necessary. Add vanilla, then pour over remaining ingredients. Stir until thoroughly mixed, then spread onto greased 10 x 15 x 1-inch cookie sheet. Score and chill, then finish cutting into squares.