Salad Dressing - cooking recipe

Ingredients

1/2 c. vinegar
1/2 c. white sugar
1/4 c. salad oil (Crisco)
1 1/2 tsp. salt
1/4 tsp. garlic salt
1/2 c. butter (not margarine)
4 (1 oz.) sq. unsweetened chocolate
3 c. sugar (4 Tbsp. at a time)
1/2 tsp. salt
1 2/3 c. evaporated milk (standard sized can)

Preparation

Note:
Burning the batch even slightly ruins the entire thing. Start over.
If a child is attempting this, a double boiler is recommended.