Sweet & Spicy Korean Chicken

Last updated on: March 11, 2026

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Let’s talk Korean chicken. The sticky, glossy, sweet-meets-spicy stuff you normally order on a Friday night and instantly regret when you see the calories. This version fixes that.

This Sweet & Spicy Korean Chicken delivers all the big flavours you want — gochujang heat, soy sauce umami, garlic, ginger — but uses Diet Coke to create that thick, lacquered sauce without loading it up with sugar.

Same vibe, much better macros.

Each serving lands at around 52 g protein and roughly 310 calories, making it a proper high-protein dinner that actually fills you up.

Chicken breast does the heavy lifting, the sauce clings beautifully, and the whole thing is done in under 30 minutes using just a wok or large frying pan.

It’s ideal for busy weeknights, meal prep, or anyone who loves bold flavours but still wants dinner to work with their goals, not against them.

Why You’ll Love This High-Protein Recipe

• Packed with around 50+ g protein per serving to keep you full and satisfied

• Sticky, glossy sauce without loads of added sugar

• Ready in under 30 minutes — faster than a takeaway menu scroll

• Simple supermarket ingredients, no specialist shopping trips

• Perfect for meal prep — the sauce gets even better overnight

• Big flavour, sensible calories (yes, both can exist)

Key Ingredients

Chicken Breast. Lean, high in protein, and perfect for soaking up all that delicious sauce.

Soy Sauce. Deep, savoury umami flavour that balances the sweetness of the sauce.

Red Onion & Peppers. A bit of crunch, a bit of colour, and a lot of flavour.

Garlic & Ginger. The ultimate flavour duo—spicy, fragrant, and completely essential.

Diet Coke (or Pepsi Max). The secret ingredient that replaces sugar, creating a sticky, caramelised glaze without the extra calories.

Rice Vinegar. A splash of acidity to balance out the sweetness and spice.

Gochujang Paste. This Korean chilli paste is rich, slightly sweet, and absolutely essential for that authentic kick. Most supermarkets stock it now—finally!

Sweet & Spicy Korean Chicken

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4.7 from 3 reviews

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Korean Sticky Chicken with Diet Coke? Yes! This healthy, high-protein version delivers all the flavour without the sugar overload.

• Total Time: 20 mins
• Yield: 3 1x

Ingredients

Units MUS Scale 1x2x3x

• 1 tsp oil
• 500g chicken breast, chopped
• 30 ml soy sauce
• 1 red onion, chopped
• 1 green pepper, chopped
• 1 red pepper, chopped
• 15 g garlic, finely chopped
• 15 g ginger, finely chopped
• 1 can (330ml) Diet Coke or Pepsi Max
• 1 tbsp rice vinegar
• 20g gochujang paste

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Instructions

Get your wok nice and hot—think “could fry an egg in seconds” hot. Add a teaspoon of oil, then toss in your chopped chicken along with the soy sauce. This stops the chicken from looking all pale and sad. Fry for a few minutes until it starts to develop some colour, then remove it from the pan and set it aside.

Still on high heat, throw in the red onion and peppers. Let them sizzle away for a few minutes until they start to soften and get those delicious charred edges. You want them slightly smoky but still with a bit of bite.

Next, add the garlic and ginger. Stir-fry for about 30 seconds—just long enough for your kitchen to start smelling incredible.

Now for the magic. Pour in the Diet Coke, along with the rice vinegar and gochujang paste. Stir everything together, then return the chicken to the wok.

Let it all simmer on high heat for around 10 minutes, stirring occasionally. The sauce will reduce, thicken, and cling to the chicken like a stylish, spicy coat. Once it’s glossy and sticky, it’s done.

Serve immediately, sprinkled with sesame seeds and spring onions—because, let’s be honest, they make everything look fancier.

• Author: Scott Baptie
• Prep Time: 5 mins
• Cook Time: 20 mins
• Category: Main Course
• Method: Stove Top
• Cuisine: Korean

Nutrition

• Serving Size: 1
• Calories: 311
• Fat: 7 g
• Carbohydrates: 10 g
• Protein: 52 g

Recipe Video

Serving & Storage

To Store

Let the chicken cool completely, then transfer to an airtight container. Store in the fridge for up to 3 days. The sauce thickens and gets even stickier — not a bad thing.

To Reheat

Reheat in a pan over medium heat with a small splash of water to loosen the sauce. Or microwave for 2 minutes, stirring halfway through.

To Freeze

Freeze in airtight containers for up to 3 months. Defrost overnight in the fridge before reheating. Give it a good stir and it’ll come back to life.

Serving Suggestions

• Steamed jasmine rice or egg-fried rice

• Noodles with extra veg for a fakeaway vibe

• Stuffed into lettuce cups for a lighter option

• With broccoli or stir-fried greens for easy meal prep

Variations & Tips

• Want even more protein? Add extra chicken or stir through edamame beans at the end

• Swap chicken breast for chicken thighs if you want a juicier finish

• Cooking for kids? Reduce the gochujang slightly and let adults add chilli oil

• Let the sauce reduce properly — don’t rush it, that’s where the magic happens

• Finish with sesame seeds and spring onions for maximum takeaway illusion

FAQs

Can I make this Korean chicken recipe with regular Coke?

You can, but it’ll be much sweeter. Regular Coke has loads of sugar, which kind of defeats the whole "healthier" part of this recipe.

Is gochujang spicy?

It’s got a bit of a kick, but it’s more of a deep, warming heat rather than a face-melting one. You can reduce the amount if you prefer things milder.

Can I use chicken thighs instead of chicken breast?

Absolutely! Thighs are juicier and stay more tender. Just adjust the cooking time slightly to ensure they’re fully cooked.

What can I serve this Korean chicken recipe with?

Rice is the classic choice, but it’s also great with noodles or even stuffed into lettuce wraps for a lighter option.

Can I make this in advance?

Yes! The flavours develop even more over time, so it actually tastes better the next day. Just reheat and enjoy.

If You Liked This Korean Chicken Recipe, Try These

Diet Coke Chicken. This is the original fizzy sauce masterpiece that inspired this recipe! Using Diet Coke to create a rich, glossy, sticky glaze, this dish is a perfect healthier alternative to classic takeaway-style chicken. It's high in protein, lower in sugar, and ridiculously delicious. If you loved the way Diet Coke worked in this Korean chicken recipe, you need to try this one too!

Beef Chow Mein. If you love a hearty, protein-packed stir-fry, this Beef Chow Mein has your name all over it. Tender beef strips, crisp veggies, and silky noodles come together in a flavourful soy and oyster sauce. It’s quick, it’s tasty, and it’s bound to impress—even if your wok technique is more “chaos” than “chow mein.”

Szechuan Chicken. If you love bold, spicy flavours, this one’s for you. Szechuan chicken is packed with fiery Szechuan peppercorns, garlic, and chilli, creating a tingly, numbing heat that keeps you coming back for more. It’s a different kind of spice from gochujang but just as addictive. Plus, it's high in protein and super quick to cook!

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Loved the recipe? Got your own little tweaks and twists? I am all ears! Feel free to drop a comment below and share your cooking experiences with me.