Cajun Spiced Fries Spicy Mayo

Golden-brown, oven-baked Cajun Spiced Fries with Spicy Mayo on a rustic plate, garnished with fresh parsley. Save Pin
Golden-brown, oven-baked Cajun Spiced Fries with Spicy Mayo on a rustic plate, garnished with fresh parsley. | noshtheory.com

These oven-baked fries are coated in a bold blend of Cajun spices including smoked paprika, garlic, and cayenne pepper, delivering a crispy and flavorful bite. Paired with a creamy and tangy mayonnaise dip infused with hot sauce and lemon juice, this dish offers a perfect balance of heat and creaminess. Ideal as a side or snack, the fries are baked to a golden crisp with simple preparation steps that highlight natural flavors. Adjust the spice levels to suit your taste, and experiment by swapping russet potatoes for sweet potatoes for a different twist.

The first time I made these Cajun spiced fries was during a lazy Sunday afternoon when my roommate and I were craving something spicy enough to wake us up. We ended up eating the entire batch straight from the baking sheet, standing in the kitchen, burning our fingers just to get to the next crispy one. The spicy mayo was an afterthought, but it turned out to be the element that made these fries completely addictive.

Last summer I made these for a backyard barbecue and watched my friend who claims she hates spicy food keep going back for more. She said the heat was just right, that kind that makes your lips tingle without overwhelming everything else. Now whenever I host, someone asks if those spicy fries are making an appearance.

Ingredients

  • 4 large russet potatoes: These starchy potatoes are the secret to getting that fluffy interior while still developing a crispy exterior, and peeling is totally up to your preference
  • 2 tbsp olive oil: This helps the seasoning stick and promotes even browning, but dont be tempted to add more or the fries might get soggy
  • 1 tsp smoked paprika: This gives the fries that gorgeous reddish hue and adds a subtle smoky depth that regular paprika just cant match
  • 1 tsp garlic powder and 1 tsp onion powder: These two work together to create that savory base flavor that makes Cajun seasoning so addictive
  • 1 tsp dried oregano and 1 tsp dried thyme: These herbs add earthy undertones that balance out the heat and give the seasoning its authentic character
  • ½ tsp cayenne pepper: This brings the fire, so start with less if you are sensitive to heat, but the beauty of Cajun spice is that warm kick
  • ½ cup mayonnaise: The creamy base for your dipping sauce, and real mayo makes a huge difference here over the lighter stuff
  • 1 tbsp hot sauce: Sriracha gives a slightly sweet heat, while Louisiana style hot sauce brings more vinegar tang, choose what you love

Instructions

Get your oven ready and prep the potatoes:
Preheat your oven to 220°C and line a large baking sheet with parchment paper, then soak your cut potatoes in cold water for 20 to 30 minutes to remove excess starch for maximum crispiness, draining and patting them completely dry with a kitchen towel
Coat the fries with all that gorgeous seasoning:
In a large bowl, toss the dried fries with olive oil and all the spices until every piece is evenly coated in that reddish orange mixture
Bake them to golden perfection:
Spread the fries in a single layer on your prepared baking sheet and bake for 30 to 35 minutes, flipping halfway through, until they are golden brown with crispy edges
Whisk up the spicy mayo while the oven does its work:
Mix the mayonnaise, hot sauce, lemon juice, garlic powder, smoked paprika, and salt in a small bowl until smooth, then taste and adjust the heat or seasoning to your liking
Bring it all together:
Serve those hot, crispy Cajun fries immediately with the spicy mayo on the side for dipping, and watch them disappear
Crispy Cajun Spiced Fries with Spicy Mayo arranged next to a creamy dipping sauce for a flavorful snack. Save Pin
Crispy Cajun Spiced Fries with Spicy Mayo arranged next to a creamy dipping sauce for a flavorful snack. | noshtheory.com

These fries have become my go to when I need something comforting but still exciting enough to feel like a treat. There is something satisfying about making restaurant style food in your own kitchen, especially when it is this simple.

Getting That Perfect Crunch

The soaking step might seem annoying, but it is the difference between okay fries and amazing ones. I have skipped it before when I was rushed, and I could immediately tell the difference in texture. That extra 20 minutes is worth every second.

Customizing Your Heat Level

Not everyone loves spice the way I do, and that is completely fine. You can easily dial back the cayenne to a quarter teaspoon and still get all that Cajun flavor without the intense heat. On the flip side, if you want to really challenge yourself, bump it up to a full teaspoon and maybe add some extra hot sauce to the mayo.

Serving Ideas and Pairings

These fries are incredibly versatile and can hold their own alongside so many main dishes. They are particularly fantastic with burgers, fried chicken, or even as part of a bigger appetizer spread. I have also been known to eat them as a meal on their own when I am feeling particularly indulgent.

  • Try crumbling some cooked bacon over the top for an extra savory crunch
  • Fresh chopped parsley or green onions add a nice fresh contrast to all the rich spices
  • A squeeze of fresh lime right before serving brightens everything up beautifully
Hot Cajun Spiced Fries with Spicy Mayo served on a wooden board, perfect for a side dish. Save Pin
Hot Cajun Spiced Fries with Spicy Mayo served on a wooden board, perfect for a side dish. | noshtheory.com

Hope these Cajun spiced fries find their way into your regular rotation. They are the kind of recipe that makes people ask when you are making them again.

Recipe FAQs

Soaking the cut potatoes in cold water for 20-30 minutes before baking helps remove excess starch, which enhances crispiness. Also, make sure to dry them thoroughly before tossing in oil and spices.

Yes, increase the cayenne pepper in the fries or add more hot sauce to the mayo dip to achieve your desired level of heat.

Russet potatoes are ideal for achieving a crispy texture, but sweet potatoes can be used for a sweeter and earthier flavor.

Peeling is optional; leaving the skin on adds extra texture and nutrients but peeled fries tend to be more uniform in crispiness.

Store fries and mayo separately in airtight containers in the refrigerator. Reheat fries in an oven or air fryer for best results, and stir the dip before serving.

Cajun Spiced Fries Spicy Mayo

Oven-baked fries tossed in Cajun spices, served with a creamy and spicy mayo dip for a flavorful kick.

Prep 15m
Cook 35m
Total 50m
Servings 4
Difficulty Easy

Ingredients

Fries

  • 4 large russet potatoes, peeled (optional) and cut into fries
  • 2 tbsp olive oil
  • 1 tsp smoked paprika
  • 1 tsp garlic powder
  • 1 tsp onion powder
  • 1 tsp dried oregano
  • 1 tsp dried thyme
  • ½ tsp cayenne pepper (adjust to taste)
  • ½ tsp black pepper
  • 1 tsp salt

Spicy Mayo

  • ½ cup mayonnaise
  • 1 tbsp hot sauce (such as sriracha or Louisiana hot sauce)
  • 1 tsp lemon juice
  • ½ tsp garlic powder
  • ¼ tsp smoked paprika
  • Salt, to taste

Instructions

1
Prepare the Oven: Preheat your oven to 425°F. Line a large baking sheet with parchment paper.
2
Soak Potatoes: Place the cut potatoes in a bowl of cold water and soak for 20–30 minutes (optional, for extra crispiness). Drain and pat dry thoroughly with a kitchen towel.
3
Season the Fries: In a large bowl, toss the fries with olive oil, smoked paprika, garlic powder, onion powder, dried oregano, dried thyme, cayenne pepper, black pepper, and salt until evenly coated.
4
Bake the Fries: Spread the fries in a single layer on the prepared baking sheet. Bake for 30–35 minutes, flipping halfway, until golden brown and crispy.
5
Prepare Spicy Mayo: While the fries bake, mix all spicy mayo ingredients in a small bowl until smooth. Adjust seasoning and heat to taste.
6
Serve: Serve the hot Cajun fries with spicy mayo on the side for dipping.
Additional Information

Equipment Needed

  • Knife and cutting board
  • Large mixing bowl
  • Baking sheet
  • Parchment paper
  • Small bowl (for mayo)
  • Measuring spoons

Nutrition (Per Serving)

Calories 310
Protein 4g
Carbs 36g
Fat 17g

Allergy Information

  • Contains eggs (mayonnaise)
  • Mayonnaise may contain mustard
  • Check hot sauce and mayonnaise labels for additional allergens if sensitive
Ivy Rosen

Passionate home cook sharing weeknight meals, kitchen hacks, and everyday cooking joy.