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Summer is Here - New Flavors This Month! Open 1pm - 9pm Daily

Summer is Here - New Flavors This Month! Open 1pm - 9pm Daily

Best Frozen Custard in Illinois

About Us

Frozen custard was invented in Coney Island, New York in 1919 when ice cream vendors Archie and Elton Kohr found that adding egg yolks to ice cream created a smoother texture and helped the ice cream stay cold longer. In their first weekend on the boardwalk, the Kohr brothers sold 18,460 cones.

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Our Customers

Amanda Danner

"Best custard EVER! Excellent service."

Denis Bakken

"The pumpkin frozen custard is awesome."

Dan Cockfield

"Don’t pass thru the Sycamore area without stopping by here. We met a couple in the NC mountains and were talking about other things and when Sycamore/DeKalb was mentioned Ollies came up in the conversation. Renowned all over."

Paul Lloyd

"Very smooth and flavorful, it is outstanding!"

Dawn Losiniecki

"Ollie's has the best frozen custard and the most delicious sundaes!"

Lailani Elumba

"Great and out of this world frozen custards. I just wish you would have mocha chip more often."

We Would Love To Hear From You

Have a question about one of our menu items, or just want to say hi? :) Fill out the form below and we will get back to you shortly!

Phone: (815) 758-8222

If inquiring about Little O's Frozen Treats please contact them at

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2290 Oakland Drive Sycamore, IL 60178

Summer is here, Come See Us Today!