Drain the pickles in a colander, then lay them flat and pat them dry with a paper towel.
Add the flour, cornmeal, and cajun seasoning to a gallon ziplock bag. Seal the bag and shake until the ingredients are blended.
In a medium-sized bowl, whisk the mayonnaise and mustard until combined.
Add the dry pickle chips to the mayo and mustard mixture and use a fork to move the pickles around until they're coated.
Move some of the pickles into the ziplock bag, and shake until they're well coated. Transfer the breaded pickle chips to a tray, and continue until all of the pickles have been dredged.
Spray the air fryer basket with oil, and place the pickles in it, making sure not to overcrowd them. Spray the tops of the pickles with more cooking spray.
Air fry the pickle slices for 10 minutes. Flip them halfway through and lightly spray the other side with cooking spray.
Serve immediately with your favorite dipping sauce, such as ranch dressing, tartar sauce, bang bang sauce, and remoulade sauce.
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Notes
Cajun Seasoning: We love our Homemade Cajun Seasoning, but if you would like to use store-bought we highly recommend Slap Ya Mama Cajun Seasoning.Storage: Fried pickles are best eaten immediately, but can be stored in an airtight container in the fridge for 3 days. Reheat in a 325°F air fryer for 5 minutes, or until warm throughout.Salt: This recipe doesn't need salt, because the pickles are very salty already, and the cajun seasoning has salt in it.Cooking Spray: It's very important to use the cooking spray, because the breading on the fried pickles can dry out otherwise.