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Know Before You Go: A variety of frozen cakes and pies are available for parties. A small round cake feeds six to eight people; a medium round cake feeds 10 to 14; a full sheet cake serves 18 to 24; and a deep-dish pie serves eight to 12.

The Extras: Smoothies combine fresh fruit and frozen yogurt with a selection of optional vitamins and nutritional supplements such as protein, calcium and herbs.

In Short
Founded in 1991 in Little Rock, Arkansas, this purveyor of low-fat frozen treats is popular with health-conscious individuals who love sweets. The 96 percent fat-free...