I talked and did tastings with most kosher caterers in Chicago. I finally got Rafi's contact information from a local synagogue, who suggested that Aviv Catering usually did Bar/Bat Mitzvot, but might be able to cater our wedding. From the first food tasting, we knew that Rafi was the guy we wanted. His food was far superior to any of the kosher caterers in Chicago, and his price was significantly lower. His daughter was our pastry chef, and I can truly say that I've never had more delicious pastries than the ones she made for our wedding. We were married on memorial day weekend, and innumerable people have come up to us since to compliment our caterer's food. If you're looking for a kosher caterer, I'd highly recommend Rafi at Aviv Catering.
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