By Erika D. | April 2026
Miso Butter Sweet Potatoes (The Japanese Sercret You Need To Try)
Hi, my name is Erika.A few years ago, while walking the streets of London in the bustling crowd of Oxford Street, I stumbled upon a tiny, hidden Japanese restaurant. It was there that I first tasted Miso Sweet Potato, and the flavor immediately captivated me. I spent a long time experimenting in my kitchen to recreate that experience, until an elderly Japanese lady shared the real Japanese Secret with me. Now, I am sharing it with you.
03/07 Miso Butter Sweet Potatoes (The Japanese Sercret You Need To Try)
Ingredients with the Japanese Secret:
• 3-4 medium sweet potatoes (size is key for even baking)
• 125g Butter (divided into 8 portions; I recommend garlic butter)
• 2 tbsp Brown Sugar (The core of the secret)
• For the Miso Cream:
• 1 tbsp Brown Miso Paste
• 100g Softened Butter
• 3 cloves of Garlic, crushed (or garlic powder to taste)
• Sriracha sauce (to taste)
• For Serving: 2 stalks of spring onions and toasted sesame seeds
How to Make Perfect Miso Sweet Potato
Wash the potatoes thoroughly, cut them in half lengthwise, and pat them completely dry.
The Secret: Line your baking tray with parchment paper. Spread 2 tablespoons of brown sugar over the spots where the potatoes will be placed. Put a small cube of butter (approx. 12g) onto the sugar for every potato half. Place the potatoes cut-side down directly onto the butter and sugar.
Baking: Place them in a preheated oven at 200°C and bake on low heat for 35-40 minutes. Do not flip them! This allows the sugar and butter to create a perfect, glass-like caramel layer.
The Miso Butter: While the potatoes bake, mix the softened butter with the miso paste, crushed garlic, and Sriracha. Blend until perfectly silky.
The Final Touch: Once baked, let them cool for a minute, then flip them over. While still steaming hot, generously spread the miso cream on top so it can melt deep into the potato.
This Is How It Should Look
Expert Tips & Variations
Top with freshly chopped spring onions and toasted sesame seeds. For a complete meal, I highly recommend adding fried tofu with tahini sauce, though this dish is a vegetarian masterpiece all on its own.
Make sure to save this post so it’s ready when the cravings hit. We have four more days of sweet potato magic ahead, leading up to the release of your free PDF planners on Day 7. Tomorrow’s recipe is already one of my personal favorites—stay tuned!
Happy roasting, and don’t forget to share your results with me.
Lots of Love, ErikaD
04/07 Mexican Style Smoky Sweet Potatoes
Take Your Healthy Journey to the Next Level!
Stop stressing about what to cook. My exclusive 7-Day Sweet Potato Meal Planner PDF is coming soon! I’ve curated my favorite ‘Roasted Magic’ recipes into one elegant, easy-to-follow guide to help you stay aesthetic and nourished all week long.”
