✔ Updated · fixed recipe card, step photos and air fryer version
My copycat Wendy's spicy chicken sandwich puts a crisp, peppery chicken fillet on a soft toasted bun with cool mayo, lettuce and tomato.
At a glance
The one tip that matters: Pound the chicken to an even 1/2 inch, then fry at a steady 350°F until it reads 165°F in the thickest part. Even thickness means a juicy center and a crust that doesn't burn.
The heat is built in two layers: a spicy buttermilk marinade that seasons the chicken all the way through, and a breading loaded with cayenne, paprika, chili powder and black pepper. The chicken is double-dipped for a thick, craggy crust and fried at 350°F until it reaches 165°F inside. Plan on about 1 hour 40 minutes, most of it hands-off marinating time, with an air fryer option below.
Why You'll Love This Spicy Chicken Sandwich
- Heat all the way through, from a spicy buttermilk marinade plus a cayenne-heavy breading.
- A thick, crunchy crust from a double dip in buttermilk and seasoned flour.
- Easy to adjust, from mild to extra hot, with an air fryer version for less oil.
What's on a Wendy's Spicy Chicken Sandwich?
The drive-thru favorite is simple, and it is my go-to order there: a spicy, crispy breaded chicken breast fillet on a toasted bun with mayonnaise, lettuce and tomato. The cool, creamy toppings balance the peppery heat of the chicken.
I build that heat in two places. Cayenne and hot sauce go into the buttermilk marinade, and a blend of cayenne, paprika, chili powder, black pepper, garlic and onion goes into the flour. Halved, pounded breast cutlets keep the fillet thin enough to cook through quickly and fit the bun.
Ingredient Notes
Exact amounts are in the recipe card below.
- Chicken breasts: two large breasts halved into four cutlets. Boneless thighs also work and stay juicier; fry them to at least 165°F.
- Buttermilk: tenderizes and helps the breading stick. No buttermilk? Stir 1 tablespoon of lemon juice into 1 cup of milk and let it sit for 5 minutes.
- Hot sauce or jalapeño pickle juice: adds tang and heat to the marinade.
- Spicy breading: flour plus a little cornstarch for crunch, with cayenne, paprika, chili powder, black pepper, garlic powder, onion powder and salt.
- Frying oil: vegetable, canola or peanut oil, all of which handle 350°F well.
- To assemble: soft hamburger buns toasted in butter, mayonnaise, leaf lettuce and ripe tomato.
Step-by-Step Photos
Here's how it comes together. Exact amounts, times and temperatures are in the recipe card below.
Tips for Success
- Pound the chicken evenly. A thick breast leaves the outside dark before the center reaches 165°F. Halved and pounded cutlets cook through in 6 to 8 minutes.
- Marinate for at least an hour. The buttermilk tenderizes the chicken and carries the cayenne into the meat, so the heat isn't only in the crust. Don't go past 8 hours or the texture turns soft.
- Double-dip for the craggy crust. Buttermilk, flour, buttermilk, flour. Rubbing a little marinade into the flour first gives the coating extra crunchy bits.
- Rest before frying. Ten minutes on a rack helps the breading stick so it doesn't fall off in the oil.
- Watch the oil and use a thermometer. Keep the oil at 350°F, fry only two pieces at a time, and check every fillet reads 165°F (74°C) in the thickest part.
- Control the heat. For milder sandwiches, cut the breading cayenne to 1 tablespoon and skip it in the marinade. For hotter ones, add 1/2 teaspoon ghost pepper powder or brush the fried chicken with spicy chili oil.
Wendy’s Spicy Chicken Sandwich (Copycat Recipe)
4
sandwiches20
minutes20
minutes560
kcal1
hour40
minutesA copycat-style Wendy’s spicy chicken sandwich: chicken breast cutlets soaked in spicy buttermilk, double-dredged in a cayenne, paprika and black pepper flour, fried crisp and golden to 165°F, then stacked on a toasted bun with mayo, lettuce and tomato.
Ingredients
- For the Spicy Buttermilk Marinade
2 boneless, skinless chicken breasts (about 8 oz each), halved into 4 cutlets
1 cup buttermilk
2 tablespoons hot sauce (or jalapeño pickle juice)
1 teaspoon cayenne pepper
1 teaspoon kosher salt
- For the Spicy Breading
1 1/2 cups all-purpose flour (190 g)
2 tablespoons cornstarch
1 1/2 tablespoons cayenne pepper (use 1 tablespoon for less heat)
1 tablespoon paprika
2 teaspoons chili powder
2 teaspoons freshly ground black pepper
1 teaspoon garlic powder
1 teaspoon onion powder
2 teaspoons kosher salt
6 cups vegetable or peanut oil, for frying (about 2 inches deep)
- To Assemble
4 hamburger buns, split
1 tablespoon butter, softened, for toasting
1/4 cup mayonnaise
4 green leaf lettuce leaves
1 ripe tomato, thinly sliced
Directions
- Marinate the Chicken
- Slice each chicken breast in half horizontally to make 4 cutlets, then pound them gently to an even 1/2-inch thickness so they fit the bun and cook evenly.
- Whisk the buttermilk, hot sauce, 1 teaspoon cayenne and 1 teaspoon salt in a bowl. Add the chicken, turn to coat, cover and refrigerate for at least 1 hour or up to 8 hours.
- Bread and Fry
- Whisk the flour, cornstarch, cayenne, paprika, chili powder, black pepper, garlic powder, onion powder and 2 teaspoons salt in a shallow dish. Drizzle in 2 tablespoons of the marinade and rub it in with your fingertips to make little craggy bits.
- Lift a cutlet from the buttermilk, let the excess drip off and press it firmly into the flour. Dip it back into the buttermilk, then into the flour again so it has a thick, shaggy coating. Set it on a rack and repeat. Let the coated chicken rest for 10 minutes while the oil heats.
- Heat the oil in a heavy pot or deep skillet to 350°F (175°C). Fry 2 cutlets at a time for 6 to 8 minutes, turning once or twice, until deep golden and 165°F (74°C) in the thickest part. Let the oil return to 350°F between batches.
- Drain the fried chicken on a wire rack set over a baking sheet.
- Assemble
- Butter the cut sides of the buns and toast them in a skillet over medium heat for 1 to 2 minutes, until golden.
- Spread mayonnaise on both halves of each bun. Add a spicy chicken fillet, a lettuce leaf and a couple of tomato slices, close the sandwiches and serve hot.
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Air Fryer Spicy Chicken Sandwich
Marinate and double-dredge the chicken as usual, rest it for 10 minutes, then spray both sides generously with oil so no dry flour shows. Air fry at 380°F for 12 to 15 minutes in a single layer, flipping and spraying again halfway, until the coating is golden and the chicken reads 165°F (74°C) in the thickest part.
The crust comes out a little drier and less craggy than deep-fried, but it's still crunchy and the heat is the same.
What to Serve With It
A spicy sandwich wants something cool or salty on the side.
- Fries: classic McDonald's-style french fries or spicy Cajun fries.
- Something cool: creamy coleslaw takes the edge off the heat.
- A Wendy's-style meal: a bowl of Wendy's chili or a taco salad, and a homemade Frosty for dessert.
Storing and Reheating
- Fridge: store the fried chicken separately from the buns and toppings in an airtight container for up to 3 days.
- Freezer: freeze cooled fried fillets on a tray, then bag them for up to 2 months. Reheat from frozen at 375°F for 15 to 20 minutes.
- Reheat: use the oven or air fryer at 375°F for 8 to 10 minutes, until hot (165°F) and crisp again. The microwave makes the crust soggy.
- Assemble fresh: toast the buns and add the mayo, lettuce and tomato just before serving.
Frequently Asked Questions
What spices are in a Wendy's-style spicy chicken sandwich?
The heat comes mainly from cayenne pepper and black pepper, with paprika, chili powder, garlic powder and onion powder for color and depth. In this copycat-style recipe the spices go into both the buttermilk marinade and the flour, so the chicken is seasoned inside and out.
How do I keep the breading from falling off?
Let the excess buttermilk drip off, press the chicken firmly into the flour, double-dip it, and let it rest on a rack for 10 minutes before frying. Turn the chicken gently with tongs and don't crowd the pot, which drops the oil temperature.
How do I know the chicken is cooked?
Use an instant-read thermometer in the thickest part of the fillet. It should read 165°F (74°C). The crust will be deep golden by then; if it browns much faster than that, lower the heat slightly.
Can I make this spicy chicken sandwich in the air fryer?
Yes. Bread the chicken as usual, spray both sides well with oil and air fry at 380°F for 12 to 15 minutes, flipping halfway, until 165°F inside. The crust is a little less craggy than deep-fried but still crunchy.
Can I make the chicken ahead?
Fry the chicken, cool it and refrigerate it in an airtight container for up to 3 days. Reheat at 375°F in the oven or air fryer until hot and crisp, about 8 to 10 minutes, then build the sandwiches with fresh toppings.
How many calories are in this sandwich?
Each sandwich in this recipe is about 560 calories, depending on the bun, how much mayo you use and how much oil the breading absorbs. Air frying the chicken and using light mayo brings it down.
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This looks delicious