Purple sweet potato whole wheat bun –There’s something wonderful about baking with unique ingredients, and today, I’m excited to share a delightful recipe for Japanese Purple Sweet Potato Buns. These soft and fluffy buns made with sweet potato flour are not only delicious but also add a pop of color to your table. Let’s dive in and create these beautiful treats!
Japanese Purple Sweet Potato Bun
This recipe highlights the rich flavor of purple sweet potatoes. Enjoy these buns fresh out of the oven, or use them for a unique take on your favorite sandwiches!

Ingredients
- 2 cups purple sweet potato flour
- 1 cup all-purpose flour
- 1 packet (2 1/4 teaspoons) active dry yeast
- 1/2 cup warm water (110°F or 45°C)
- 1/4 cup sugar
- 1/2 teaspoon salt
- 1/2 cup warm milk
- 1/4 cup unsalted butter, melted
- 1 egg, beaten (for egg wash)
Instructions
- In a small bowl, combine warm water, sugar, and yeast; let it sit for about 5-10 minutes until it becomes frothy.
- In a large mixing bowl, whisk together the purple sweet potato flour, all-purpose flour, and salt.
- Create a well in the center of the dry ingredients and add the frothy yeast mixture, warm milk, and melted butter.
- Knead the dough on a lightly floured surface for about 10 minutes until it becomes smooth and elastic.
- Place the dough in a greased bowl, cover it with a damp cloth, and let it rise in a warm place for approximately 1 hour, or until it has doubled in size.
- Once the dough has risen, punch it down and divide it into equal portions (about 10-12). Shape each portion into a bun and place them on a baking sheet lined with parchment paper.
- Cover the shaped buns with a cloth and let them rise again for about 30 minutes.
- Preheat your oven to 350°F (175°C). Brush each bun with the beaten egg to give them a beautiful golden color.
- Bake in the preheated oven for 15-20 minutes or until the buns are golden brown and cooked through.
- Remove from the oven and let them cool slightly before serving. Enjoy your delicious Japanese Purple Sweet Potato Buns!
These buns are not only visually stunning due to their vibrant purple hue, but they also boast a subtly sweet flavor that pairs wonderfully with a variety of fillings. Whether you choose to enjoy them plain, stuffed with sweet or savory fillings, or as part of a meal, they’re sure to impress anyone who tries them!