Cajun Spiced Fries Spicy Mayo

Golden-brown Cajun Spiced Fries with Spicy Mayo piled high on a plate, showcasing their crispy texture and aromatic spices. Save Pin
Golden-brown Cajun Spiced Fries with Spicy Mayo piled high on a plate, showcasing their crispy texture and aromatic spices. | noshtheory.com

These oven-baked fries feature a crispy texture enhanced by a blend of smoked paprika, garlic, onion, oregano, thyme, and cayenne pepper. The bold seasoning brings a spicy, aromatic kick balanced by a creamy, tangy mayo dip infused with hot sauce and smoked paprika. Ideal as a flavorful snack or side, these fries deliver satisfying crunch and zesty depth. Simple steps include soaking the fries to remove starch, baking until golden, and whisking together the spicy mayo for a perfect complement.

The kitchen was chaos that Tuesday, friends arriving in twenty minutes and me staring at four raw potatoes. Id promised homemade fries, forgetting Id never actually made them from scratch before. Sometimes the best kitchen discoveries happen right before deadline.

That night became legendary among my friends. They still ask for these fries, especially the spicy mayo, which I've since learned is the real star. Something about the heat and creaminess just locks people in.

Ingredients

  • 4 large russet potatoes: Starchy potatoes are non-negotiable here, they develop that perfect exterior crunch while staying fluffy inside
  • 2 tablespoons olive oil: Just enough to help the spices cling and encourage golden browning without greasiness
  • 1 teaspoon smoked paprika: This is the backbone of the whole flavor profile, dont skip it or use regular paprika
  • 1 teaspoon garlic powder: Frontier kitchen wisdom taught me that garlic powder actually distributes more evenly than fresh here
  • 1 teaspoon onion powder: Works in harmony with garlic to create that familiar Cajun foundation
  • 1 teaspoon dried oregano: Adds an earthy undertone that grounds all the brighter spices
  • 1 teaspoon dried thyme: Brings a subtle herbal note that prevents the spice blend from feeling one-dimensional
  • ½ teaspoon cayenne pepper: Adjust this based on your spice tolerance, but keep in mind it mellows during baking
  • ½ teaspoon freshly ground black pepper: Fresh grinding makes a noticeable difference in the finish
  • 1 teaspoon sea salt: Use a coarse salt if you have it, it creates these tiny flavor explosions
  • ½ cup mayonnaise: Real mayo makes a difference here, no substitutes
  • 1 tablespoon hot sauce: Sriracha brings sweetness alongside heat, Louisiana style is sharper and more vinegary
  • 1 teaspoon lemon juice: The acid cuts through the rich mayo and brightens the whole dip
  • ¼ teaspoon smoked paprika: Echoes the seasoning on the fries for flavor continuity
  • Pinch of salt: Even the dip needs salt to pop all the other flavors

Instructions

Get your oven ready:
Preheat to 425°F and line your baking sheet with parchment paper, trust me this prevents so much cleanup later
Prep the potatoes properly:
Cut those russets into ¼-inch sticks then soak them in cold water for 20 minutes, this step is what prevents soggy fries
Pat them completely dry:
This is the moment that determines crispiness, water and hot oil dont get along in the way we want
Create the spice coating:
Toss the dried fries with olive oil and all those spices until every surface is covered, this is messy work worth doing thoroughly
Arrange for success:
Spread fries in a single layer with space between them, crowded baking sheets lead to steaming instead of roasting
Bake with patience:
Let them go for 30 to 35 minutes, flipping halfway, until they are golden and the edges are starting to crisp up
Make the spicy mayo:
While the fries bake, whisk mayo, hot sauce, lemon juice, smoked paprika, and salt until completely smooth
Serve them immediately:
Fries are at their peak straight from the oven, no resting required here
A close-up of oven-baked Cajun Spiced Fries with Spicy Mayo, highlighting their seasoned, crunchy edges and creamy dipping sauce. Save Pin
A close-up of oven-baked Cajun Spiced Fries with Spicy Mayo, highlighting their seasoned, crunchy edges and creamy dipping sauce. | noshtheory.com

My sister-in-law still talks about the night I served these at our weekly family dinner. Everyone reached for seconds, even my nephew who claims to hate spicy food.

Getting the Perfect Crisp

Ive learned that convection mode, if you have it, is your secret weapon. The circulating air browns everything more evenly and creates that restaurant quality crunch that made me so proud the first time I achieved it at home.

Customizing the Heat Level

Start with half the cayenne if you are cooking for sensitive palates. You can always serve extra hot sauce on the side for heat seekers, which is what I do when my spice loving brother visits.

Making It Your Own

Sweet potatoes work beautifully with this same spice blend, just add about five extra minutes to the baking time since they are naturally softer. This variation has become my go-to for autumn dinner parties.

  • Try garnishing with fresh parsley or sliced green onions for a pop of color
  • A touch of garlic powder in the mayo takes the dip to another level entirely
  • Make double the spicy mayo because people will absolutely ask for more
Overhead shot of Cajun Spiced Fries with Spicy Mayo served in a rustic bowl, ready for snacking or a flavorful side. Save Pin
Overhead shot of Cajun Spiced Fries with Spicy Mayo served in a rustic bowl, ready for snacking or a flavorful side. | noshtheory.com

These fries have become my reliable weeknight win, simple enough for Tuesday dinner but impressive enough for Saturday night guests.

Recipe FAQs

Soaking cut potatoes in cold water removes excess starch, helping them crisp up when baked. Tossing with olive oil and baking at high heat ensures a golden, crunchy texture.

A blend of smoked paprika, garlic powder, onion powder, oregano, thyme, cayenne pepper, black pepper, and sea salt creates the bold, aromatic Cajun seasoning.

The mayo dip combines mayonnaise, hot sauce, lemon juice, smoked paprika, and salt, whisked until smooth to provide a creamy, tangy, and spicy complement.

Yes, you can reduce or increase the cayenne pepper in the fries and adjust the hot sauce in the mayo dip to suit your preferred spice level.

Sweet potatoes can be used for a sweeter, softer variation while retaining a crispy finish when baked properly.

Using a large baking sheet lined with parchment paper and a convection oven setting helps spread fries evenly and promotes crispiness.

Cajun Spiced Fries Spicy Mayo

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

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

Ingredients

For the Fries

  • 4 large russet potatoes, scrubbed
  • 2 tablespoons olive oil
  • 1 teaspoon smoked paprika
  • 1 teaspoon garlic powder
  • 1 teaspoon onion powder
  • 1 teaspoon dried oregano
  • 1 teaspoon dried thyme
  • ½ teaspoon cayenne pepper
  • ½ teaspoon freshly ground black pepper
  • 1 teaspoon sea salt

For the Spicy Mayo

  • ½ cup mayonnaise
  • 1 tablespoon hot sauce (sriracha or Louisiana hot sauce)
  • 1 teaspoon lemon juice
  • ¼ teaspoon smoked paprika
  • Pinch of salt

Instructions

1
Preheat and Prepare: Preheat the oven to 425°F. Line a large baking sheet with parchment paper.
2
Cut and Soak Potatoes: Cut the potatoes into ¼-inch thick fries. Soak them in cold water for 20 minutes to remove excess starch. Drain and pat dry thoroughly.
3
Season the Fries: In a large bowl, toss the dried potato fries with olive oil, smoked paprika, garlic powder, onion powder, oregano, thyme, cayenne pepper, black pepper, and sea salt until evenly coated.
4
Bake the Fries: Arrange the fries in a single layer on the prepared baking sheet. Bake for 30–35 minutes, flipping halfway through, until golden and crisp.
5
Prepare Spicy Mayo: In a small bowl, whisk together mayonnaise, hot sauce, lemon juice, smoked paprika, and salt until smooth. Refrigerate until ready to serve.
6
Serve: Serve the hot Cajun fries immediately with spicy mayo on the side.
Additional Information

Equipment Needed

  • Chef's knife
  • Large bowl
  • Baking sheet
  • Parchment paper
  • Small mixing bowl
  • Whisk or spoon

Nutrition (Per Serving)

Calories 285
Protein 4g
Carbs 35g
Fat 14g

Allergy Information

  • Contains eggs (mayonnaise)
  • Mayonnaise may contain mustard; check labels if sensitive
  • Verify labels on spices and sauces for gluten content
Ivy Rosen

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