Preheat air fryer to 400°F. Pat STEAK dry with paper towels and cut into 1-inch cubes.
In a mixing bowl, toss the steak cubes with BUTTER, WORCESTERSHIRE SAUCE, GARLIC POWDER, SEA SALT, and BLACK PEPPER to coat the surface.
Place the cubes in the preheated air fryer basket in a single layer.
Air fry for 6 minutes (for a slightly pink center), shaking halfway through to ensure even heat distribution.Note: Add a few minutes for well-done steak cubes or reduce the air fryer time for a pinker center. Test the steak for doneness as needed.
While steak cubes are air frying, melt the remaining BUTTER with GARLIC using your microwave or stove. Stir in the PARSLEY.
Serve the cooked steak bites with the melted garlic butter sauce and devour!
To store, refrigerate leftover steak bites in an airtight container for up to 5 days.