Best steak cuts: Top sirloin filet provides excellent tenderness and flavor. Ribeye, New York strip, or beef tenderloin are also delicious alternatives.

Even cooking: Cut the steak into similar-sized pieces and avoid overcrowding the air fryer basket. Cook in batches if necessary.

Temperature tip: Use a meat thermometer to check doneness. The recommended minimum safe internal temperature for whole cuts of beef is 145°F (63°C), followed by a 3-minute rest.

Extra spicy variation: Increase the red pepper flakes, add a pinch of cayenne pepper, or finish with a little hot sauce.

Lemon garlic variation: Add fresh lemon juice and lemon zest to the melted garlic butter for a bright, citrusy finish.

Herb butter variation: Replace dried parsley with freshly chopped parsley, thyme, or rosemary.

Garlic Parmesan variation: Sprinkle freshly grated Parmesan cheese over the warm steak bites after tossing them in garlic butter.

Steak and mushroom variation: Sauté mushrooms separately with butter and garlic, then combine them with the finished steak bites.

Lower-sugar option: Omit the brown sugar for a savory seasoning blend without added sugar.

Serving suggestions: Pair with mashed potatoes, roasted potatoes, steamed broccoli, green beans, cauliflower rice, pasta, or a fresh garden salad.

Make ahead: Cut the steak into bite-size pieces and refrigerate in an airtight container for up to 1 day before cooking. Prepare the dry seasoning mixture separately and store in a sealed container.

Refrigeration: Store cooked steak bites in an airtight container in the refrigerator for up to 3–4 days. Refrigerate within 2 hours of cooking and keep any extra garlic butter with the steak.

Freezing: Freeze cooled steak bites in a freezer-safe container or resealable freezer bag for up to 2–3 months for best quality. Thaw overnight in the refrigerator before reheating.

Air fryer reheating: Preheat to 350°F (175°C) and reheat steak bites for approximately 2–4 minutes, checking frequently to prevent overcooking. Reheat leftovers to 165°F (74°C).

Stovetop reheating: Warm steak bites in a skillet over medium-low heat with a small amount of butter, stirring occasionally until the internal temperature reaches 165°F (74°C).

Microwave reheating: Place steak bites in a loosely covered microwave-safe dish and heat in short intervals, stirring between intervals until thoroughly reheated to 165°F (74°C).

Alternative cooking method: Cook the seasoned steak bites in a lightly oiled skillet over medium-high heat, working in batches until browned and cooked to a safe internal temperature. Toss with prepared garlic butter before serving.

Nutrition information is estimated per serving and may vary depending on the cut of beef, ingredient brands, and portion sizes.