what is the best wet food to put on a lick mat stick/spoon while walking that’s not peanut butter?

i am trying to desensitize my dog to other dogs in public and am treating her before and during watching a dog walk by. being stationary is easy to treat but while walking, it’s harder because she’s only 8 pounds.

i want to buy a lick mat on a stick and smear it with some sort of wet food or treat that i can walk around with and have the stick vertical so i just reach down with it. im looking for recommendations that are almost as sticky as peanut butter but not peanut butter (im afraid we’d run into someone with allergies)

preferably something that has a squeeze pouch so it’s easy to refill the stick on the go. any suggestions of brands of treats/wet food?