This Copycat Five Guys Cajun Fries has been my go-to side when I want something crunchy, spicy, and utterly addictive without the trip through a drive-thru. I first recreated this blend late one summer when friends gathered for burgers on the patio; everyone reached for the fries first. The seasoning hits bright with smoked paprika and garlic, carries a little heat from red pepper flakes, and rounds out with a whisper of oregano and thyme. Because I care about texture, I soaked the potatoes first to pull out surface starch — that single step transformed the fries from merely good to restaurant-crisp.

What makes this version special is that it captures that Five Guys, freshly fried flavor but gives you the freedom to choose oven-baked or air-fried methods for a lighter finish. The seasoning is flexible: you can dial the heat up or down, swap oils, and still get the same golden, slightly blistered exterior and tender interior. These fries are the kind that vanish at parties and become comfort food staples on busy weeknights — salty, smoky, and perfectly addictive.

Ingredients

• Russet potatoes: 2 large (about 1.25–1.5 pounds total) — choose high-starch russets for a fluffy interior and crisp edges. Avoid waxy varieties; look for firm skins and a few eyes for classic fry texture.
• Peanut oil (or canola/olive oil): 1 tablespoon — peanut or canola has a higher smoke point for better browning; extra-virgin olive oil works in the oven but keep an eye on temperature.
• Smoked paprika: 1 teaspoon — provides the smoky backbone characteristic of Cajun fries; use Spanish smoked paprika for depth.
• Garlic & onion powders: 1/2 teaspoon each — these dried aromatics give savory punch without moisture.
• Granulated sugar: 1/2 teaspoon — balances heat and deepens caramelization on the fries.
• Dried oregano & thyme: 1/2 teaspoon oregano, 1/4 teaspoon thyme — earthy, herbaceous notes that round the spice blend.
• Red pepper flakes: 1/4 teaspoon — add heat; increase to taste for bolder spice.
• Sea salt & freshly cracked black pepper: 1/2 teaspoon salt, 1/4 teaspoon pepper — finish with a light sprinkle of flaky sea salt after cooking for the best crunch.

Instructions

Prep the potatoes: Wash and peel 2 large russets. Cut into 1/2-inch thick sticks to approximate Five Guys style. Place cut potatoes into a large bowl of cold water with ice and soak at least 30 minutes to remove surface starch; this yields crisper edges when roasted or air-fried. Dry and season: After soaking, drain and rinse the fries. Pat thoroughly dry on multiple layers of paper towels — moisture is the enemy of crisping. Toss fries in a large bowl with 1 tablespoon oil until evenly coated, then add the spice blend (smoked paprika, garlic powder, onion powder, granulated sugar, oregano, thyme, red pepper flakes, salt, black pepper). Mix until every fry is lightly and evenly dusted. Oven method (batch cooking): Preheat oven to 390°F and place baking sheets inside to heat. Remove hot sheets carefully and spray with cooking spray. Spread fries in a single layer with space between pieces. Bake 35–40 minutes, flipping once halfway, until golden brown and blistered at the edges. Visual cues: edges should be deep golden, centers tender when pierced with a fork. Air fryer method (quicker, less oil): Preheat air fryer to 390°F (if required by your model). Spray the basket with cooking spray. Arrange fries in a single layer — work in batches to avoid crowding. Cook 20–25 minutes, shaking the basket or turning halfway, until golden and crisp. Smaller batches yield better airflow and crunch. Finish and serve: Transfer fries to a wire rack or paper towel-lined tray to drain briefly. Sprinkle with flaky sea salt and serve immediately with ketchup, aioli, or your favorite dipping sauce.

Storage Tips

To store leftovers, cool fries to room temperature on a wire rack to avoid trapping steam. Place in an airtight container lined with paper towels and refrigerate for up to 3 days. For longer storage, freeze in a single layer on a sheet tray until firm, then transfer to freezer bags for up to 3 months. Reheat frozen or refrigerated fries in a preheated air fryer at 400°F for 4–8 minutes or in a hot oven for 6–10 minutes until re-crisped. Avoid microwaving — it makes fries limp.

Ingredient Substitutions

Swap peanut oil for canola or vegetable oil if you need a neutral flavor, or use light-tasting avocado oil for a higher smoke point. For a nut-free option, avoid peanut oil completely. Replace smoked paprika with regular paprika plus a pinch of liquid smoke if you lack smoked spice. To lower sodium, reduce the added salt and finish with a salt sprinkle at the table. For a gluten-free diet these fries are naturally safe — just verify any packaged spices for cross-contamination warnings.

Serving Suggestions

Serve these Cajun fries alongside juicy burgers, grilled chicken, or a big mixed-green salad for contrast. Try dipping options like garlic aioli, spicy ketchup, chipotle mayo, or buttermilk ranch for cooler balance. Garnish with chopped parsley or green onions for freshness. For a loaded-fries twist, top with shredded cheese, scallions, and a drizzle of spicy sauce; pop under the broiler for a minute to melt.

Seasonal Adaptations

In summer, pair the fries with a backyard burger and a crisp corn salad; in winter, serve with comforting chili or braised meats. Swap red pepper flakes for cayenne when you want more heat in colder months, or add a squeeze of lemon and fresh herbs in spring to brighten the palate. You can also toss fries with a touch of truffle oil for a festive upgrade during holidays.

Meal Prep Tips

Prep cut potatoes and store submerged in cold water in the fridge for up to 24 hours to save time. When ready to cook, drain, dry, and season. For efficient cooking, par-bake at 350°F for 10–12 minutes, cool, then finish at 425–450°F for 10–15 minutes to achieve crispness while freeing you up for other tasks. Label batches and store in shallow containers for even reheating.

These Cajun fries are a simple way to elevate any meal with smoky, spicy crunch. Try the air fryer first if you want speed; scale up to ovens for parties. Most of all, make the seasoning your own and enjoy the smiles they create at the table.