30-Minute Korean Fried Chicken Sandwiches – Crispy and Easy

Korean Fried Chicken Sandwiches bring a bold, crispy, and savory experience to your home kitchen. After a long week of mundane meals, I once whipped these up on a whim for a Friday night gathering. The crunch of the double-dipped coating paired with the tangy, spicy kimchi slaw instantly transformed our casual dinner into a restaurant-quality feast. This recipe has become my go-to whenever I need a comforting yet exciting meal that impresses everyone at the table.

Why This Korean Fried Chicken Sandwiches Works

This Korean Fried Chicken Sandwiches balances intense flavors and textures while remaining highly practical for home cooks. You get a perfect crunch from the potato starch coating, a deep savory profile from the fish sauce and gochujang brine, and a refreshing acidity from the homemade kimchi slaw. The chicken remains tender due to the buttermilk brine, ensuring every bite is juicy even after hitting the fryer. It is a foolproof way to satisfy cravings for complex, spicy takeout food without leaving your house.

Ingredients

Chicken and Marinade

• 2 large boneless skinless chicken breasts

• 1 cup buttermilk

• 1 egg

• 2 tablespoons fish sauce (provides deep umami)

• 1 tablespoon grated ginger

• 2 tablespoons sriracha

• 1 cup flour

• 1/4 cup potato starch (essential for that signature shatter-crisp crust)

• 1 tablespoon gochugaru (Korean chili flakes)

• 2 teaspoons garlic powder

• 1 teaspoon ground ginger

• 2 teaspoons kosher salt

• Canola oil for frying

• 4 brioche burger buns

Korean Chicken Sauce

• 1/2 cup soy sauce

• 1/4 cup honey

• 2 tablespoons gochujang paste

• 1 tablespoon gochugaru

• 1 tablespoon grated ginger

• 2 tablespoons rice wine vinegar

• 2 teaspoons sesame oil

• 1 teaspoon sesame seeds

• 1/3 cup hot water

Kimchi Slaw and Pickles

• 4 cups shredded green cabbage

• 1 cup chopped kimchi

• 1/2 cup mayonnaise (Kewpie brand is recommended for creaminess)

• 2-3 Persian cucumbers, sliced

• Rice wine vinegar and aromatics for seasoning

Step-by-Step Instructions

1. Brine the chicken: Use a flat meat tenderizer to pound the chicken breasts to a uniform thickness, ensuring even cooking. Mix buttermilk, egg, fish sauce, sriracha, and ginger, then marinate the chicken for 2-8 hours to tenderize the muscle fibers.

2. Prepare the sauce: Combine all glaze ingredients in a skillet and simmer until the mixture thickens into a glossy glaze. The thick consistency helps the sauce cling to the crust without making it soggy immediately.

3. Mix the slaw and pickles: Toss the cabbage, kimchi, mayo, and vinegar in a bowl for the slaw. For the pickles, combine the sliced cucumbers with vinegar, sugar, salt, gochugaru, and sesame oil. Chill both until serving.

4. Coat the chicken: Combine flour, potato starch, and spices in a gallon bag. Remove chicken from the brine, letting excess drip off, then shake it vigorously in the flour mix to ensure a thick, craggy coating that captures oil.

5. Fry and glaze: Heat oil to 360 degrees F in a heavy pot. Fry two pieces at a time for about 7 minutes until they reach 165 degrees F internal temperature. Brush the warm glaze over the crispy crust immediately after removing from the oil to seal the flavors in.

Elsa Tips for Perfect Korean Fried Chicken Sandwiches

Experience leads to better cooking, and these tips will help you master this sandwich on your first try. Always ensure your oil temperature stays consistent, as drop-offs in heat lead to greasy chicken. Use a probe thermometer to verify the 360-degree heat throughout the frying process.

• Keep it dry: Ensure the chicken is properly coated in the dry mix, filling in every crevice to create maximum surface area for crunch.

• Consistency is key: Do not crowd the pot, as adding too many pieces will lower the oil temperature and ruin the crispness.

• Toast the buns: Always toast your brioche buns with butter to provide a sturdy base that won’t soak up the sauce too quickly.

Variation: For an extra layer of heat, add sliced fresh serrano peppers into your kimchi slaw mix to double down on the spice profile.

Serving Suggestions and Pairings

These sandwiches are substantial, so they pair perfectly with light, refreshing sides to cut through the richness. Consider serving them with a side of sesame-dressed cucumber salad or lightly charred bok choy. If you are hosting a larger party, they pair beautifully with chilled sparkling non-alcoholic ginger drinks or a light iced tea to balance the fermented profile of the kimchi and gochujang.

Storage and Reheating

1. Store leftover chicken and sauce separately in airtight containers in the refrigerator for up to two days.

2. Reheat the chicken in an air fryer at 375 degrees F for 5-7 minutes to regain that initial crispy texture.

3. Assemble the sandwich fresh when you are ready to eat, as the slaw will cause the bun to soften if stored together.

Frequently Asked Questions

Can I substitute potato starch with cornstarch?

Yes, you can use cornstarch to achieve a similar result if you cannot find potato starch. Potato starch generally provides a slightly lighter, glassier crunch, but cornstarch is an excellent and widely accessible alternative.

How do I know when the chicken is fully cooked?

The chicken is fully cooked when an instant-read probe thermometer inserted into the thickest part reads 165 degrees F. Avoid guessing based on color alone, as the dark glaze can mask the actual state of the crust.

Can I prepare the slaw ahead of time?

You can prepare the kimchi slaw up to 24 hours in advance, as the flavors meld together nicely while sitting in the refrigerator. Keep it in a sealed container to ensure the cabbage stays crisp rather than watery.

What if I do not have a deep fryer?

You can use a heavy-bottomed Dutch oven or a deep cast-iron skillet on your stovetop to achieve the same results as a dedicated fryer. The key is maintaining that steady 360-degree oil temperature using a clip-on thermometer.

Are there any substitutions for fish sauce?

If you prefer to skip fish sauce, use a high-quality light soy sauce or a splash of coconut aminos for a similar savory, salty boost. While fish sauce provides a specific depth, these alternatives will still maintain a great flavor balance.

Conclusion

Korean Fried Chicken Sandwiches are a rewarding project that elevates any mealtime into something special. By combining the perfect, double-coated crispiness with the deep umami of the gochujang glaze, you achieve a level of flavor that is truly satisfying. Gather these ingredients, follow the frying steps carefully, and enjoy the spicy, tangy crunch of your own homemade creation. There is no better feeling than serving a sandwich that looks and tastes this incredible.

Korean Fried Chicken Sandwiches

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Print Recipe

These Korean Fried Chicken Sandwiches are a perfect balance of bold, savory, and spicy flavors. Featuring a shatter-crisp potato starch crust and a tender buttermilk-brined interior, this sandwich is elevated by a glossy gochujang glaze and a refreshing kimchi slaw. Perfect for a restaurant-quality meal at home, this recipe guarantees a juicy, satisfying crunch in every bite without the need for takeout.

• Total Time: 140
• Yield: 4 sandwiches

Ingredients

Scale 1x2x3x

• 2 large boneless skinless chicken breasts
• 1 cup buttermilk
• 1 egg
• 2 tablespoons fish sauce
• 1 tablespoon grated ginger
• 2 tablespoons sriracha
• 1 cup flour
• 1/4 cup potato starch
• 1 tablespoon gochugaru
• 2 teaspoons garlic powder
• 1 teaspoon ground ginger
• 2 teaspoons kosher salt
• Canola oil for frying
• 4 brioche burger buns
• 1/2 cup soy sauce
• 1/4 cup honey
• 2 tablespoons gochujang paste
• 1 tablespoon gochugaru
• 1 tablespoon grated ginger
• 2 tablespoons rice wine vinegar
• 2 teaspoons sesame oil
• 1 teaspoon sesame seeds
• 1/3 cup hot water
• 4 cups shredded green cabbage
• 1 cup chopped kimchi
• 1/2 cup mayonnaise
• 2–3 Persian cucumbers, sliced and pickled in vinegar

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Instructions

1. Pound chicken breasts to a uniform thickness using a meat tenderizer.
2. Mix buttermilk, egg, fish sauce, sriracha, and ginger in a bowl and marinate chicken for 2-8 hours.
3. Combine glaze ingredients in a skillet and simmer over medium heat until thickened into a glossy consistency.
4. Toss cabbage, kimchi, mayonnaise, and a splash of vinegar to prepare the slaw.
5. Mix flour, potato starch, gochugaru, garlic powder, ground ginger, and salt in a shallow dish.
6. Dredge marinated chicken in flour mixture, pressing firmly to coat.
7. Heat canola oil to 350°F and fry chicken until golden brown and cooked through.
8. Brush the hot fried chicken with the prepared gochujang glaze.
9. Assemble sandwiches by layering the glazed chicken, kimchi slaw, and pickled cucumbers on toasted brioche buns.

Notes

• Use Kewpie mayonnaise for a creamier, richer slaw.
• Ensure oil temperature remains around 350°F to guarantee a crisp coating without burning.
• Store leftover glaze in the refrigerator for up to one week.

• Author: Elsa
• Prep Time: 120
• Cook Time: 20
• Category: Chicken
• Method: Deep Frying
• Cuisine: Korean-Fusion