Name: Purple Sweet Potato Mochi
Prep time: 20 min
Cook time: 25 min
Total time: 45 min
Cuisine: Japanese
Ingredients: 1 cup purple sweet potatoes, cooked and mashed; 1 cup glutinous rice flour; 1/4 cup sugar; 1/2 cup water (or coconut milk/whole milk for richer flavor); Cornstarch, for dusting

Why You’ll Love This Recipe

This recipe combines the earthy sweetness of purple sweet potatoes with the chewy texture of mochi, creating a dessert that’s both unique and comforting. It’s gluten-free, naturally colorful without artificial dyes, and can be enjoyed as a snack or dessert. Whether you’re making it for a special occasion or simply to satisfy a sweet craving, purple sweet potato mochi is an impressive and delicious choice.

Ingredients

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)

Purple sweet potatoes, cooked and mashed
Glutinous rice flour
Sugar
Cornstarch (for dusting)
Water
Coconut milk or whole milk (optional for richer flavor)

Directions

Steam or boil the purple sweet potatoes until tender, then mash until smooth.
In a mixing bowl, combine glutinous rice flour, sugar, and water (or milk). Mix until a smooth batter forms.
Transfer the batter into a heatproof dish and steam for about 20–25 minutes, stirring halfway through to ensure even cooking.
Once the dough becomes glossy and elastic, allow it to cool slightly.
Dust a clean surface with cornstarch. Transfer the mochi dough onto the surface and knead lightly.
Divide the dough into small portions. Flatten each piece and fill with a spoonful of mashed purple sweet potato.
Pinch the edges to seal and shape into smooth balls.
Roll lightly in cornstarch to prevent sticking.
Serve fresh at room temperature or slightly chilled.

Servings and timing

This recipe makes about 12 mochi pieces.
Preparation time: 20 minutes
Cooking time: 25 minutes
Total time: 45 minutes

Variations

Add shredded coconut to the filling for extra texture.
Replace coconut milk with almond milk for a nutty twist.
Mix a little vanilla extract or pandan essence into the dough for fragrance.
Roll finished mochi in sesame seeds instead of cornstarch for a unique coating.
Fill with sweetened red bean paste instead of purple sweet potato for a classic mochi option.

Storage/Reheating

Store leftover mochi in an airtight container at room temperature for up to 1 day. For longer storage, refrigerate for up to 3 days, but note that the texture may firm up. To restore softness, steam the mochi briefly or microwave for a few seconds before serving. Avoid freezing, as it can change the chewy texture.

FAQs

Can I use regular sweet potatoes instead of purple ones?

Yes, but the flavor and color will be different. Purple sweet potatoes add natural sweetness and vibrant color.

What’s the difference between glutinous rice flour and regular rice flour?

Glutinous rice flour creates the chewy, sticky texture of mochi, while regular rice flour will not work the same way.

Can I make mochi without a steamer?

Yes, you can microwave the dough in short intervals, stirring in between until it becomes glossy and elastic.

How do I prevent mochi from sticking to my hands?

Dust your hands and work surface with cornstarch or potato starch before handling the dough.

Can I make this recipe vegan?

Yes, simply use coconut milk or water instead of dairy milk.

How long does homemade mochi stay fresh?

Mochi is best enjoyed the day it’s made but can last up to 3 days in the refrigerator.

Can I freeze mochi?

It’s not recommended, as freezing changes the texture and makes it hard and less chewy.

Why is my mochi dough too runny?

This usually happens if there is too much liquid. Add a little more glutinous rice flour to balance it.

Can I add food coloring to enhance the purple color?

You can, but it’s usually unnecessary since purple sweet potatoes provide a natural, vibrant color.

What should I serve with purple sweet potato mochi?

They pair well with green tea, matcha lattes, or fresh fruit for a light dessert spread.

Conclusion

Purple sweet potato mochi is a beautiful and delicious treat that’s easy to make at home. With its naturally vibrant color, soft chewiness, and comforting sweetness, it’s sure to impress both visually and taste-wise. Perfect for gatherings, celebrations, or a simple homemade dessert, this mochi recipe is one you’ll come back to again and again.