Air Fryer Steak ‘n Shake Beef Tallow Fries (Copycat)

These Air Fryer Steak ‘n Shake Beef Tallow Fries (Copycat) give you the thin, golden, extra-savory shoestring fries from the drive-thru, right at home. The secret is simple: real beef tallow and a hot air fryer.

Steak ‘n Shake now calls its fries “Beef Tallow Fries” because they are cooked in beef tallow instead of vegetable oil. That switch brought back the rich, old-school flavor people remember from classic burger stands. You can get that same taste with just a few tablespoons of tallow and no deep fryer.

The result is a crisp outside, a fluffy inside, and a deep, beefy flavor that makes plain fries taste flat by comparison. Serve them with a burger, pile them with chili and cheese, or dust them with Cajun seasoning for a spicy kick.

Why Beef Tallow Makes Better Fries

Beef tallow is rendered beef fat. It is solid at room temperature and melts into a clean, rich fat that clings to every fry.

• Deeper flavor. Tallow adds a savory, beefy taste that vegetable oil cannot match. It is the flavor behind many classic fast-food fries.
• Better browning. Tallow has a high smoke point, so the fries can cook hot and fast in the air fryer without burning.
• Crispier texture. A thin coat of melted tallow helps the surface dry and crisp while the inside stays soft.
• Less fat overall. You only need 2 to 3 tablespoons for a full batch, far less than a deep fryer.

Look for grass-fed or Wagyu beef tallow to match the Steak ‘n Shake style. You can find jars near the cooking oils or butter in many grocery stores, at butcher shops, or online.

Ingredients You Need

• Russet potatoes (2 large, about 1.5 lb). Their high starch makes the crispiest fries. Leave the skin on for a rustic look or peel for the classic style.
• Beef tallow (2 to 3 tablespoons, melted). Grass-fed or Wagyu tallow gives the best copycat flavor.
• Cornstarch (1 tablespoon). A light dusting helps the fries crisp up.
• Fine salt (about 1 teaspoon). Fine salt sticks better than coarse salt on thin fries.

Equipment

• Air fryer (basket or oven style, 5 quarts or larger works best)
• Mandoline or sharp chef’s knife for thin, even shoestring cuts
• Large bowl for soaking and tossing
• Clean kitchen towels for drying the potatoes

How to Make Air Fryer Steak ‘n Shake Beef Tallow Fries

Step 1: Slice the russets into thin shoestring fries, about 1/4 inch thick. Keep them even so they cook at the same rate.

Step 2: Place the fries in a bowl of cold water for at least 30 minutes, or up to 2 hours in the fridge. This pulls out extra starch for a crisper fry.

Step 3: Drain and pat the fries very dry with clean towels. Any leftover water will steam the fries instead of crisping them.

Step 4: Toss the dry fries with the cornstarch, then drizzle with the melted beef tallow. Toss until every fry is lightly coated. Preheat the air fryer to 380°F for 3 to 5 minutes.

Step 5: Spread the fries in a single, loose layer. Cook for 15 to 18 minutes, shaking the basket every 5 minutes. Raise the heat to 400°F and cook 2 to 4 more minutes, until deep golden and crisp.

Step 6: Transfer to a bowl and season with fine salt while the fries are hot. Serve immediately.

Every air fryer runs a little differently. Start checking at the low end of the cook time, especially with very thin fries.

Tips for the Crispiest Copycat Fries

• Don’t skip the soak. Rinsing away surface starch is the biggest step toward crunchy fries.
• Dry, dry, dry. Wet fries steam. Take the extra minute with the towels.
• Don’t crowd the basket. Fries need space for hot air to move. Two or three smaller batches beat one packed batch.
• Keep the cuts thin. Steak ‘n Shake fries are skinny shoestrings. Thin cuts cook faster and crisp better.
• Melt the tallow first. Solid tallow won’t coat evenly. Warm it for 20 to 30 seconds in the microwave.

Variations and Serving Ideas

Cajun fries. Swap the plain salt for a sprinkle of this Copycat Steak ‘n Shake Cajun Seasoning for Fries and Burgers as soon as the fries come out of the air fryer. The heat and garlic pair perfectly with the beefy tallow.

Chili cheese fries. Pile the hot fries on a platter, spoon over my Copycat Steak ‘n Shake Chili, and top with shredded cheddar and diced onion. It’s the diner-style comfort food classic, made at home.

The full burger-night plate. Serve these fries next to Steak and Shake Frisco Patty Melts for a complete copycat meal. The crispy fries are perfect for dragging through any extra sauce.

Garlic parmesan fries. Toss the finished fries with grated parmesan, garlic powder, and chopped parsley.

Dipping sauces. Ketchup is classic, but fry sauce, ranch, or honey mustard all work well.

Storing and Reheating

Store: Let leftover fries cool, then keep them in an airtight container in the fridge for up to 3 days.

Reheat: Air fry at 375°F for 3 to 5 minutes, shaking once, until hot and crisp again. Skip the microwave, which makes fries soft and soggy.

Make ahead: Cut and soak the potatoes up to 2 hours ahead and keep them in cold water in the fridge. Dry and cook right before serving.

Frequently Asked Questions

Does Steak ‘n Shake really cook its fries in beef tallow?

Yes. Steak ‘n Shake now lists its fries as Beef Tallow Fries, cooked in beef tallow rather than vegetable oil. That is where the rich, savory flavor comes from.

Can I make beef tallow fries in an air fryer?

Absolutely. Instead of deep frying, you toss the potatoes in a small amount of melted tallow and let the air fryer do the crisping. You still get the beefy flavor with far less fat.

Where do I buy beef tallow?

Many grocery stores carry jarred beef tallow near the oils or butter. Butcher shops and online retailers also sell grass-fed and Wagyu tallow.

Can I use frozen fries?

Yes. Toss frozen shoestring fries with 1 to 2 tablespoons of melted tallow and air fry at 400°F for 12 to 16 minutes, shaking often. Skip the soak and the cornstarch.

What is the best potato for copycat Steak ‘n Shake fries?

Russets. Their high starch and low moisture give you a crisp outside and fluffy inside.

Why are my air fryer fries soggy?

The most common causes are wet potatoes, a crowded basket, or too low a temperature. Dry the fries well, cook in small batches, and finish at 400°F.

Are beef tallow fries gluten-free?

This recipe uses only potatoes, beef tallow, cornstarch, and salt, which are naturally gluten-free. Check your tallow and cornstarch labels if you need to avoid cross-contact.