I had a wonderful experience at this DQ :) The lady at the counter very knowledgeable of gluten and contamination. Did a cleaning and sanitized Blizzard machine.
Came here all the time before my allergy, but was hesitant to continue. I now come regularly, getting a sundae with peanut butter cups. When you inform staff of your allergy, they will clean the ice cream machine, and grab fresh toppings from the back. I now feel totally safe here!
According to the website: Gluten is in many DQ products and cross contact may easily occur during product preparation. For those with gluten sensitivity, we recommend trying one of our manufactured novelties: Dilly Bars, Buster Bar Treats, Fudge Bars, Vanilla Orange Bars, or Starkiss® Bars, which can be found in clear, sealed plastic wrappers. These products are made without wheat, rye, oats, or barley in a facility that has limited cross contact risk. This does not include Dilly Bars or Buster Bar Treats in paper bags, which are made on the store premises and are subject to potential cross contact.