Lucy concocts a delicious salad dressing, and Fred tells her she ought to sell it. Marketing the product as "Aunt Martha's Old Fashioned Salad Dressing," the girls manage to receive hundreds of orders. The problem: they've priced the product so cheaply that it will cost them rather than make them money.

After seeing Ricky and Fred give pretty girl Eve Whitney the eye during a party, Lucy and Ethel decide to go to charm school.