Step 1

Whisk together ketchup, hot sauce, and egg white in a small bowl until smooth. Place panko in a large bowl. Toss together cauliflower florets and ketchup mixture in a second large bowl until coated. Working in batches, toss cauliflower in panko to coat. Coat cauliflower well with cooking spray.

Step 2

Place half of the cauliflower in air fryer basket, and cook at 320°F until golden brown and crispy, about 20 minutes. Repeat with remaining cauliflower.

Step 3

While cauliflower cooks, stir together sour cream, blue cheese, garlic, vinegar, and pepper in small bowl. Serve cauliflower with blue cheese sauce.