Miso Mayo Roast Chicken Recipe: The Secret to Juicy, Umami-Rich Chicken

Miso Mayo Roast Chicken (みそマヨローストチキン)

Miso Mayo Roast Chicken is an incredibly appetizing main dish where chicken is marinated in a savory-sweet glaze and slow-roasted until fragrant.

This dish achieves a deep, complex flavor by combining two staples of the Japanese pantry: Miso and Mayonnaise. Shichimi togarashi (seven-flavor chili pepper) is used as a secret ingredient. Its sharp, zesty kick tightens and brings together all the flavors.

Beyond this roast, “Miso-Mayo” is a versatile, all-purpose sauce—perfect as a dip for vegetable sticks or a glaze for grilled fish. While this recipe features chicken thighs, you can easily substitute chicken breast or pork; the marinade ensures the meat stays tender and juicy even under high heat.

Cooking Tip:

The guideline for roasting chicken is about 30 minutes at 230°C (445°F). Baking with the skin side up allows excess fat to render out, resulting in a crispy and savory skin. Since miso-based sauces burn easily, bake at 230°C initially and slightly lower the temperature midway through. If it starts to look like it’s burning, loosely cover the chicken with aluminum foil.

The Science: “Double Enzyme Action”

The Power of Miso: Enzymes in miso break down proteins, naturally tenderizing the meat from the inside out.
The Power of Mayonnaise: The vinegar helps further decompose proteins, while the oil and egg yolks boost moisture retention, sealing in every drop of juice.

Nutrition Facts

Category	Calories	Protein	Fat	Carbs	Sodium (as Salt Equivalent)
Total (Whole Recipe)	1,571.2 kcal	122.6 g	107.8 g	12.7 g	4.31 g
Per Serving (1 of 4)	392.8 kcal	30.7 g	27.0 g	3.2 g	1.08 g

(Note: Here is the recalculated nutritional information, based on the assumption that half of the seasoned sauce (☆ ingredients) is discarded (meaning only half is actually consumed.)

Ingredients (Serves 4)

Chicken Thighs: 720g
☆ Red Miso: 54g (Recommended: Fundokin “Ofukuro Akamiso”)
☆ Half-Calorie Mayonnaise: 54g
☆ Sugar: 9g
☆ Sake: 5g
☆ Shichimi Togarashi (seven-flavor chili pepper)：to taste

Cooking Instructions

⋈*The red miso that I always use is Fundokin’s “Ofukuro Akamiso”. The scent is not too strong, so it is easy to match with various dishes.　Click here for Fundokin’s website.　👉　https://www.fundokin.co.jp

Prepare the Marinade: In a small bowl, whisk together the red miso, mayonnaise, sugar, shichimi Togarashi, and sake until smooth.
Prep the Chicken: Pat the chicken thighs dry with paper towels to remove excess moisture. Trim away any excess fat (pale yellow/mushy sections) and white connective tissue. Cut the thighs in half if they are particularly large.
Marinate: Coat the chicken thoroughly in the miso-mayonnaise mixture. Place in a sealed container or bag and refrigerate for 2 to 8 hours.
Preheat & Prep for Baking: Preheat your oven to 230°C (445°F).
Clean the Meat: Gently wipe away the excess marinade from the surface of the chicken (miso burns easily!) and arrange the pieces on a baking tray.
Roast: Set the baking sheet in the middle rack of the oven, bake at 230°C (445°F)for 15 minutes, then reduce the temperature to 180°C and bake for another 10 minutes.
- > Tip: If the surface begins to darken too quickly, loosely cover the chicken with aluminum foil.
Serve: Once cooked through and golden brown, let the chicken rest for a few minutes, then slice into bite-sized pieces.

Pro-Tip: Choosing Your Miso

Miso varies by fermentation time and base (rice, barley, or soybean).

Mugi-miso (miso made with barley koji) may occasionally contain black barley fibers. These fibers are dietary fiber and are completely safe to eat. However, if you prefer a smoother texture, we recommend choosing products that do not contain these black barley fibers.

When using shiro-miso (white miso) in this recipe, you can also make it deliciously by slightly reducing the amount of sugar, or by mixing in yuzu peel instead of shichimi togarashi (seven-flavor chili pepper).

Red Miso (Aka Miso): Used here for its bold, salty-sweet umami and deep color.
White Miso (Shiro Miso): Sweeter and milder; great for a more delicate flavor.
Awase Miso: A balanced blend of both.
Mugi Miso: Made with barley. If you see black fibers, don’t worry—they are safe dietary fibers! For a smoother texture, you can strain the miso before mixing the sauce.

White miso on the left and red miso on the right. Awase miso(mixed miso) is a blend of several types of miso. If you want to know more about miso, please click here. **👉Japanese traditional seasoning miso**

mugi-miso — **Mugi miso** (made with barley koji) may occasionally contain black barley fiber.These fibers are dietary fiber and are completely safe to consume as is. However, if you prefer a smoother texture, we recommend choosing a product that does not contain these dark fibers.

Read the Japanese version of this article here! [しっとりジューシー！「みそマヨローストチキン」のレシピ｜W酵素でプロの味]　

naokoan

Hi, I’m Naoko! I am a licensed Registered Dietitian in Japan, currently working in a hospital setting. My daily mission is to provide nutritious, healing meals to patients, ensuring that every dish supports their health and brings a smile to their face. My recipes are more than just cooking guides—they are built on scientific nutritional balance and clinical experience. Why I provide ingredients in grams (g): You might notice that all my recipes use precise gram measurements. This is because, as a dietitian, I believe that accuracy is the key to true health management. Whether you are tracking calories, managing salt intake, or simply want to recreate the exact flavor of a professional hospital kitchen, these measurements ensure your success and well-being. My Specialty: I specialize in high-pressure cooking and oven recipes that save time without sacrificing nutrition. My goal is to introduce the world to “Real Japanese Home Cooking”—dishes that are simple, budget-friendly, and body-friendly. I’m thrilled to share the wisdom of Japanese nutrition with you. Let’s cook our way to a healthier life!