Easy Okonomiyaki Chaffles: A Japanese-Inspired Keto Treat

Breakfast

March 9, 2026

Imagine the savory, umami-packed flavors of Japanese Okonomiyaki fused with the crispy, cheesy goodness of a keto chaffle. This isn’t a dream; it’s your new favorite low-carb meal! Our Okonomiyaki Chaffle recipe is incredibly easy, lightning-fast, and delivers that authentic street food experience without the carbs. Get ready to fire up that waffle maker for a taste of Osaka, keto-style!

Ingredients

• For the Chaffle Batter
• Shredded Mozzarella Cheese – ½ cup or 56g
• Large Eggs – 2
• Baking Powder – ½ teaspoon or 2g
• Finely Shredded Cabbage – ¼ cup or 25g
• For the Okonomiyaki Sauce
• Soy Sauce or Tamari – 4 teaspoons or 20ml
• Sugar-Free Ketchup – 4 tablespoons or 60g
• Worcestershire Sauce – 4 teaspoons or 20ml
• Monkfruit or Swerve Sweetener – 2 tablespoons or 24g
• For the Toppings
• Bonito Flakes (Katsuobushi) – 4 tablespoons or 8g
• Kewpie Mayonnaise – 2 tablespoons or 30g
• Aonori (Green Seaweed Powder) – 2 tablespoons or 10g
• Beni Shoga (Pickled Red Ginger) – 2 tablespoons or 30g
• Green Onion – 1 stalk, thinly sliced

Instructions

1. Preparation Method
2. Prepare the Okonomiyaki Sauce: In a small bowl, whisk together the soy sauce, sugar-free ketchup, Worcestershire sauce, and sweetener until smooth. Set aside.
3. Preheat Your Waffle Maker: Turn on your waffle maker to preheat. Once hot, lightly grease it with your preferred oil or cooking spray.
4. Make the Chaffle Batter: In a medium bowl, beat the two eggs until well-combined.
5. Combine : Stir the finely shredded cabbage, baking powder, and shredded mozzarella cheese into the beaten eggs. Mix until everything is evenly incorporated.
6. Cook the Chaffles: Pour half of the batter onto the preheated waffle maker plate. Close the lid and cook for 3-4 minutes, or until golden brown and crisp. Repeat with the remaining batter.
7. Assemble and Garnish: Place the hot chaffles on a serving plate. Drizzle generously with the prepared Okonomiyaki sauce and Kewpie mayonnaise.
8. Add Final Toppings: Sprinkle with Aonori, a generous amount of bonito flakes, thinly sliced green onions, and a pinch of Beni Shoga.
9. Serve Immediately: Enjoy your Okonomiyaki Chaffles while they are hot and the bonito flakes are ‘dancing’!

Nutritional Information

• Prep Time: 10 minutesCook Time: 4 minutesServings: 2 Chaffles
• Approximate values per serving (1 chaffle):Calories: 350 kcalNet Carbs: 6gProtein: 20gFat: 28g
• Disclaimer: is an estimate and may vary based on the specific brands and used.

Pro Tips

• For an extra crispy chaffle, gently squeeze any excess moisture out of the shredded cabbage with a paper towel before adding it to the batter.
• Do not overfill your waffle maker. The batter will expand as it cooks, and overfilling can lead to a messy cleanup.
• To boost the umami flavor, add a pinch of dashi powder or a teaspoon of nutritional yeast to the chaffle batter.

FAQ

Q: How do I make my Okonomiyaki Chaffle extra crispy
A: For the crispiest result, the key is to remove excess moisture. Gently squeeze the shredded cabbage with a paper towel before adding it to the batter. This prevents the chaffle from becoming soggy and ensures a perfectly crisp texture.

Q: Is this recipe gluten-free
A: Yes, this recipe is naturally gluten-free. To ensure it meets your dietary needs, use Tamari instead of soy sauce and double-check that your brand of Worcestershire sauce is certified gluten-free.

Q: What can I substitute for bonito flakes
A: Bonito flakes provide a unique smoky and savory flavor. If you can’t find them or prefer not to use them, you can simply omit them. For a different savory kick, you could try a sprinkle of nutritional yeast or crumbled crispy bacon.

Q: Can I make these chaffles ahead of time
A: These Okonomiyaki Chaffles are best served immediately for optimal crispness and to see the bonito flakes ‘dance’. If you need to reheat them, we recommend using a toaster oven or an air fryer for a few minutes to restore their crispy texture.

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