At any one of the 12 Swirls and Twirls shops on Long Island, the decor -- cotton-candy- and orange-creamsicle-colored -- rivals the frozen yogurt in sweetness.

Frozen yogurt hasn't always been so sugary. When the treat made its debut in the 1970s as a packaged purchase, it tasted as sour as its warmer cousin, said Bruce Tharp, founder of the ice-cream consultancy Tharp's Food Technology. In the '80s, franchises like TCBY, or This Can't Be Yogurt, added sugar to their soft-serve dessert, balancing its acidity and attracting more customers.

The sugar high didn't last: When frozen yogurt rebounded this century, brands catering to tastes for the tangy, like Red Mango and Pinkberry, generated the biggest buzz nationwide.

Swirls and Twirls, a Jericho-based company that brought in $6 million last year, is banking on the triumph, ultimately, of sweet over sour. According to Swirls and Twirls franchise support manager Ron Rahilly, who previously worked for Red Mango, the company's product appeals to people of all ages and both genders, unlike Red Mango's more zesty concoction, which draws mostly women in their late teens to early 40s.

Over the last five years, yogurt has extended its foothold in the U.S. frozen-sweets market from 3.9 percent to 6 percent of sales, according to market research by Port Washington-based NPD Group. Locally, competition is stiff: A Newsday listing this month found 83 frozen-yogurt chain branches on Long Island, including national brands as well as other local companies such as Yogurt Crazy and Yogurt & Such, plus numerous independent shops.

Swirls and Twirls co-owner Joseph Sala says the boom is an outgrowth of America's health craze. (Some experts, like Tharp, maintain that -- despite its probiotic qualities -- frozen yogurt is not much healthier than reduced-fat ice cream.)

Sala, 54, who previously owned a Toyota dealership, and his partner, Dana Ippolito, 39, a homemaker and mother of two, opened their first Swirls and Twirls self-serve frozen-yogurt store in Massapequa Park in 2011, the year the craze for an ice cream alternative really took off.

Their company, which now oversees three corporate and nine franchise stores on Long Island, doubled its profits from 2011 to 2012 and traffic at individual stores continues to grow, said Fred Ippolito, 39, Dana's husband and director of franchise sales.

But frozen yogurt is a "discretionary purchase" that consumers can live without in leaner times, said Bonnie Riggs, an analyst for NPD Group's food service division. She suggested that the popular confection might soon go the way of the once-trendy cupcake: NPD forecasts demand for frozen yogurt to drop by 1 percent next year.

Sala expects Swirls and Twirls' sales to stay on the rise. The chain offers a loyalty program that tracks purchases on smartphones, as well as all-you-can-eat children's birthday parties that he said create strong word-of-mouth advertising.

A 13th store is planned, in Medford, and the company is exploring locations in Westchester, New Jersey and Connecticut. Swirls and Twirls sites its franchises in shopping centers with strong anchor tenants such as Whole Foods and Walmart.

"We'd like to keep the overhead reasonable for our franchisees," Fred Ippolito said.

Franchisees -- including a retired New York police lieutenant, a former ultrasound technician, and a recent college graduate -- invest from $225,000 to $450,000 in their stores. They pay the Swirls and Twirls corporation 6 percent of their sales in royalties every week.

Frank Bordonaro, a former auto body painter who opened the Centereach franchise with his family's help in March, said his business now serves 400 customers a day. "They welcomed us right away," he said.


AT A GLANCE

Name: Swirls and Twirls

Owners: Joseph Sala and Dana Ippolito

Year founded: 2011

2012 revenues: $6 million

Locations: 12

Employees: About 120 in stores; six corporate

Newsday travel writer Scott Vogel took the ferry over to Block Island for a weekend of fun. Credit: Randee Daddona

Updated now Newsday travel writer Scott Vogel took the ferry over to Block Island for a weekend of fun.

Newsday travel writer Scott Vogel took the ferry over to Block Island for a weekend of fun. Credit: Randee Daddona

Updated now Newsday travel writer Scott Vogel took the ferry over to Block Island for a weekend of fun.

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