Butterfly the lobster tails with meat or kitchen shears.
Melt the garlic butter and mix in the cajun seasoning.
Brush the butter mixture on the lobster meat.
Add the lobster tails to the air fryer basket. Air fry at 390 degrees for about 4-5 minutes. You can add an additional minute or two for larger tails if they are not opaque.
Optional: Brush with additional garlic butter before serving.
Notes
Thaw first: Fully thaw frozen lobster tails before butterflying and air frying.
Cooking time: 3-4 oz lobster tails take about 4-5 minutes at 390°F. Larger tails will need an extra minute or two.
Check for doneness: The lobster meat should be opaque and white throughout.
Seasoning: Use Cajun seasoning, Old Bay, or your favorite seafood seasoning to taste.
Storage: Store leftovers in an airtight container in the refrigerator. Reheat gently to avoid overcooking.