
Potato mochi is my answer whenever I crave something chewy savory and totally comforting but do not want to fuss with too many ingredients. This twist on the classic Japanese treat combines humble potatoes with glutinous rice flour for an irresistible texture and flavor that make them impossible to stop eating.
I tried this dish after falling in love with the traditional sweet mochi and was surprised at how well potatoes work here adding heartiness without losing that signature bouncy bite.
Ingredients
- Potatoes: Medium size works best for even cooking Choose potatoes that feel firm and have smooth skins for the creamiest texture
- Glutinous rice flour: This gives mochi its signature chew Make sure you get the glutinous variety not regular rice flour which will not work
- Water: Helps form the dough and brings everything together Use filtered water for the purest taste
- Sugar: Just enough to balance out the flavor Choose fine white sugar to mix in smoothly
- Soy sauce: Delivers savory umami Try a good quality Japanese style soy sauce for the most authentic flavor
- Oil: Neutral oil like canola or vegetable oil is best for frying so the potato mochi gets crisp without added tastes
- Sesame seeds and chopped green onions: These garnishes are optional but they add crunch and a pop of flavor For sesame seeds go for toasted if you can
Step-by-Step Instructions
- Boil the Potatoes:
- Place peeled and cut potato chunks in a pot of salted water Bring to a boil then simmer about twenty minutes until a fork slides in easily Drain and mash thoroughly until no lumps remain This step is key to a smooth potato mochi
- Mix and Form the Dough:
- Combine mashed potatoes glutinous rice flour water and sugar in a large bowl Stir with a spoon or your hands until you have a smooth and stretchy dough Knead briefly in the bowl if needed so everything is well mixed and no flour streaks show
- Shape the Mochi:
- Use your hands to divide the dough into equal pieces Roll each into a ball about the size of a ping pong ball Press lightly to flatten Each mochi should be about three quarters of an inch thick so they cook through without burning
- Fry the Mochi:
- Pour about a quarter inch of oil in a frying pan and heat over medium Add dough rounds in batches Fry until golden brown underneath then flip and repeat Should take about three to four minutes per side Transfer to paper towels to drain
- Finish with Soy Sauce and Garnish:
- While still hot drizzle with soy sauce so it soaks in Sprinkle sesame seeds and green onions over the top if using Serve while warm and the exterior is still crisp
- Serve and Enjoy:
- Eat the mochi fresh so you get the perfect chewy bite Serve with extra dipping sauce if you want

Growing up potato mochi became the highlight of cozy weekends Sometimes my mom would sneak in chopped chives and the way the kitchen smelled lifting those fresh golden mochi from the pan is a memory I still chase
Storage Tips
Store leftover potato mochi in an airtight container in the refrigerator for up to three days To reheat gently pan fry or use a toaster oven so they get crisp again Microwave if you are short on time but they will be softer You can also freeze cooked mochi in a single layer then transfer to a bag Once needed thaw at room temperature and re crisp in a pan
Ingredient Substitutions
Sweet potatoes work beautifully in place of regular potatoes for a more vibrant color and mellow sweetness If you want a cheesy twist add a pinch of shredded cheese into the dough before frying For a spicy variation sprinkle a bit of chili powder or flakes into the dough or use a spicy soy sauce for serving
Serving Suggestions
These are amazing on their own but they pair well with simple dipping sauces like a mix of soy sauce and rice vinegar For a more complete meal add a side of miso soup or toss the mochi onto a salad as croutons I have also served them as a topping for ramen or curry
Cultural or Historical Context
Mochi has deep roots in Japanese culture symbolizing good luck and celebration The classic sweet mochi is a festival staple Potato mochi likely developed as a homey adaptation for when rice flour was more available than polished rice It brings together the comforting flavors of potatoes with the fun chewy texture beloved in Japanese cuisine

Serve warm to enjoy the ultra chewy center and crisp exterior at its best Potato mochi never lasts long in our house—make extra if you can
Common Questions
- → What type of potatoes work best for potato mochi?
Medium-starch varieties like Yukon Gold or russet potatoes create a smooth, fluffy base and hold together well when frying.
- → Can I use regular rice flour instead of glutinous rice flour?
No, glutinous rice flour is essential for the chewy texture. Regular rice flour results in a different consistency.
- → How do I achieve a crisp exterior on the mochi?
Ensure the oil is hot before adding mochi and avoid overcrowding the pan. Flip for even browning on both sides.
- → Are there alternative fillings or flavors I can add?
Try mixing in shredded cheese or substituting with sweet potatoes for a sweeter version. Chili flakes add heat.
- → What is the best way to serve potato mochi?
Serve them warm, topped with soy sauce, sesame seeds, and green onions. They’re perfect as a snack or light bite.