Toss the steak pieces with olive oil to coat evenly.
In a bowl, mix brown sugar, salt, pepper, chili powder, garlic powder, and onion powder. Coat the steak thoroughly with the seasoning blend.
Preheat your air fryer to 400°F for 5 minutes.
Add steak bites to the basket in a single layer and cook for 4–6 minutes, depending on desired doneness. This method ensures perfectly cooked Air Fryer Steak Bites every time.
While cooking, melt butter and stir in garlic powder, red pepper flakes, and parsley.
Toss cooked steak bites in the garlic butter and serve immediately.