Important Note about Salt: Not all salts are made equal and cannot be substituted 1:1. If you are substituting table salt for kosher salt, you will need to cut the amount called for in the recipe by at least half.
Make sure that the cauliflower florets are smaller than broccoli to ensure even cooking. Cauliflower takes longer to cook.
Air fryers can vary. When attempting this air fried broccoli and cauliflower recipe for the first time, monitor it closely. Check on it at the halfway point and during the final 3-4 minutes of cooking.
If you don't have an air fryer, you can still prepare this side dish by roasting the veggies in the oven. Simply place them on a parchment-lined baking sheet and roast for 25-35 minutes at 400°F.