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You are here: Home / Desserts / Deco / Purple Sweet Potato Filling Recipe for Mochi, Mooncakes and Steamed Buns

September 4, 2022

Purple Sweet Potato Filling Recipe for Mochi, Mooncakes and Steamed Buns

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This Purple Sweet Potato Paste is sweet, creamy, and a versatile filling recipe you can use for your mochi, mooncakes, steamed buns and more. Made with purple sweet potatoes, also called the Japanese Purple Sweet Potato or Okinawan Sweet Potato, this filling recipe is not only pretty on the eyes, but they’re also healthy, too.

filling - purple sweet potato paste
What You'll Find in this Post:
1. Ingredients Used to Make Purple Sweet Potato Filling
2. Step by Step Guide
3. Recipe Variations and Optional Add Ins:
4. Purple Sweet Potato Filling for Mochi and Mooncakes
5. More Filling Recipes Like this Here
  • Purple Sweet Potato Filling Recipe for Mochi, Mooncakes and Steamed Buns - Purple Sweet Potato Filling
  • purple sweet potato mochi filling
  • Paleo Purple Sweet Potato Mooncakes (Vegan & Gluten-Free)

Ingredients Used to Make Purple Sweet Potato Filling

**I’ve linked some of these ingredients to amazon.com to give you an idea of what they are, but you should also be able to find them in your local grocery store (usually, the natural & organic food section). They are also affiliate links, which means that I earn a commission as an Amazon Associate if you decide to purchase the items. The price will be the same for you, link or no link 🙂

  • Mashed Purple Sweet Potato – this recipe uses mashed purple sweet potato which are a kind of Asian sweet potatoes that have a thicker, heavier flesh than orange sweet potatoes when baked. The dense texture is almost like a baked russet potato. Purple sweet potato (also called Japanese Purple Sweet Potato or Okinawan Sweet Potato) can be found in most Asian grocery stores. To cook quickly, microwave safe silicone bag or in plastic wrap, then microwaving them on high for 6-7 minutes (or more depending on the size of the potato). Afterward, I let cool somewhat and mash it with a fork.
  • Water – purple sweet potato has lower water content than other varieties of sweet potato, and they have a powdery, dry texture when cooked. Adding water helps to make the sweet potato paste creamier and less crumbly.
  • Honey – to sweeten the black sesame paste filling
  • Coconut Oil – adding coconut oil to sweet potato helps to improve its mouthfeel and flavor, but it’s not a required ingredient, so you can leave it out completely or substitute with other neutral oils. You can use regular coconut oil, or refined coconut oil, like this one, which has a neutral scent and flavor (this is great for people who do not like the distinct smell and flavor of coconut. You can also use plant-based, dairy-free butter or regular butter instead.
Purple Sweet Potato Filling Recipe for Mochi, Mooncakes and Steamed Buns - Purple Sweet Potato Filling
Refined Coconut Oil

Step by Step Guide

Purple Sweet Potato Paste for Mochi, Mooncakes and Steamed Buns

STEP 1

Purple Sweet Potato Filling Recipe for Mochi, Mooncakes and Steamed Buns - Purple Sweet Potato Filling

Wash sweet potatoes and place them in a microwave-safe bowl

STEP 2

how to cook purple sweet potatoes in the microwave

Close lid, or cover with plastic wrap. Be sure to leave one side of the lid open so that hot steam can escape from the bowl as the sweet potatoes cook

STEP 3

Purple Sweet Potato Filling Recipe for Mochi, Mooncakes and Steamed Buns - Purple Sweet Potato Filling

Microwave for 8 minutes. Carefully remove lid (the steam will be HOT) and check that the sweet potatoes are done by piercing the center with a fork or toothpick. The fork should go through the middle easily. If not, close up the lid again and microwave in 60 second increments, checking the doneness of the sweet potatoes in between.

STEP 4

Purple Sweet Potato Filling Recipe for Mochi, Mooncakes and Steamed Buns - Purple Sweet Potato Filling

Let the sweet potatoes cool to room temperature. Peel the sweet potatoes and mash with a fork

STEP 5

Purple Sweet Potato Filling Recipe for Mochi, Mooncakes and Steamed Buns - Purple Sweet Potato Filling

Add honey or liquid sweetener of choice

STEP 6

Purple Sweet Potato Filling Recipe for Mochi, Mooncakes and Steamed Buns - Purple Sweet Potato Filling

Add water, a tablespoon at a time, until the desired consistency is achieved.

If using the sweet potatoes to fill mochi and mooncakes, the consistency should be thick enough to roll into balls. If using it as a spread, or to fill steamed breads, more water could be added.

STEP 7

Purple Sweet Potato Filling Recipe for Mochi, Mooncakes and Steamed Buns - Purple Sweet Potato Filling

(OPTIONAL) add softened or melted coconut butter at the end to add a glossy sheen and creamier texture to the sweet potato paste.

STEP 8

Purple Sweet Potato Filling Recipe for Mochi, Mooncakes and Steamed Buns - Purple Sweet Potato Filling

Let cool in the fridge for 1-2 hours.

STEP 9

Purple Sweet Potato Filling Recipe for Mochi, Mooncakes and Steamed Buns - Purple Sweet Potato Filling

Use a cookie scoop to portion the sweet potato paste to use for mochi or mooncakes.

Recipe Variations and Optional Add Ins:

  • Instead of purple sweet potatoes, you can use other sweet potato varieties
  • I used honey to sweeten the sweet potato paste – but you can also use maple syrup or brown rice syrup.
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filling - purple sweet potato paste

Purple Sweet Potato Filling for Mochi and Mooncakes

Purple Sweet Potato Filling Recipe for Mochi, Mooncakes and Steamed Buns - Purple Sweet Potato FillingAll Purpose Veggies
4 from 1 vote
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Prep Time 15 mins
Course Dessert
Cuisine Chinese, Japanese
Servings 1 cup

Ingredients
  

  • 2 medium purple sweet potatoes
  • 1 Tbsp honey, agave syrup or other liquid sweetener of choice
  • 5 Tbsp water
  • 1 Tbsp coconut oil (OPTIONAL)

Instructions
 

  • Wash sweet potatoes and place them in a microwave-safe bowl
  • Close lid, or cover with plastic wrap. Be sure to leave one side of the lid open so that hot steam can escape from the bowl as the sweet potatoes cook
  • Microwave for 8 minutes. Carefully remove lid (the steam will be HOT) and check that the sweet potatoes are done by piercing the center with a fork or toothpick. The fork should go through the middle easily. If not, close up the lid again and microwave in 60 second increments, checking the doneness of the sweet potatoes in between.
  • Let the sweet potatoes cool to room temperature. Peel the sweet potatoes and mash with a fork
  • Add honey or liquid sweetener of choice
  • Add water, a tablespoon at a time, until the desired consistency is achieved.
    **If using the sweet potatoes to fill mochi and mooncakes, the consistency should be thick enough to roll into balls. If using it as a spread, or to fill steamed breads, more water could be added.
  • (OPTIONAL) add softened or melted coconut butter at the end to add a glossy sheen and creamier texture to the sweet potato paste.
  • Let cool in the fridge for 1-2 hours.
  • Use a cookie scoop to portion the sweet potato paste to use for mochi or mooncakes.
Did You Like this Recipe?I’d love to know more about it! Please leave a rating or comment below so I know what to add and which recipes to share with you next!

More Filling Recipes Like this Here

Purple Sweet Potato Filling Recipe for Mochi, Mooncakes and Steamed Buns - Purple Sweet Potato Filling
Purple Sweet Potato Filling Recipe for Mochi, Mooncakes and Steamed Buns - Purple Sweet Potato Filling
Shortcut White Bean Paste Recipe I make when I’ve run out of Shiro An
Purple Sweet Potato Filling Recipe for Mochi, Mooncakes and Steamed Buns - Purple Sweet Potato Filling
3-Ingredient Pumpkin Spice Filling for Mochi and Mooncakes
Purple Sweet Potato Filling Recipe for Mochi, Mooncakes and Steamed Buns - Purple Sweet Potato Filling
Easy 3-Ingredient Black Sesame Paste for Mochi and Mooncake Fillings
Purple Sweet Potato Filling Recipe for Mochi, Mooncakes and Steamed Buns - Purple Sweet Potato Filling
2-Ingredient Coffee Bean Paste (커피앙금) for Spreads and Mochi Filling

Filed Under: Deco Tagged With: filling

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