Purple Sweet Potato Mochi

Purple Sweet Potato Mochi / Baked Nian Gao is a delicious fusion dessert that combines the chewy texture of traditional mochi with the rich flavor of purple sweet potato. Nian Gao is particularly popular during Lunar New Year celebrations due to its association with prosperity and good fortune. This baked version offers a modern twist on traditional nian gao.

The vibrant purple hue from the sweet potato gives it a striking appearance, making it visually appealing for festive occasions. It has a soft, chewy, and slightly bouncy texture due to the glutinous rice flour, balanced by the creamy smoothness of mashed sweet potato. 

Nian gao (年糕), also known as Chinese New Year cake or sticky rice cake, is a traditional Chinese dessert made primarily from glutinous rice flour. It's widely enjoyed during Lunar New Year celebrations because its name, “nian gao” (年糕), sounds like “higher year” (年高) in Chinese, symbolizing growth, prosperity, and good fortune for the coming year.

Check out my Baked Brown Sugar Nian Gao Recipe LINK
Check out my Traditional Steamed Nian Gao Recipe LINK

Ingredients:

- 120g mochiko (glutinous rice flour)  

- 80g sugar  

- 2g baking powder  

- 200g mashed purple sweet potato  

- 200ml milk  

- 50g oil  

- 2 eggs  

Instructions:

1. Steam the Sweet Potatoes

   - Place the purple sweet potatoes in a steamer and steam until soft.  

   - Let them cool, then mash or blend the potatoes until smooth.  

2. Preheat the Oven  

   - Preheat your oven to 175°C (350°F).  

   - Grease a small baking dish (6×6" or 15×15 cm) or line it with baking paper. 

3. Mix the Ingredients

   - In a large bowl, combine the mochiko, sugar, and baking powder.  

   - Add the mashed sweet potatoes, milk, oil, and eggs.  

   - Mix thoroughly until the batter is smooth and free of lumps.  

4. Bake 

   - Transfer the batter into the prepared baking dish, spreading it evenly.  

   - Bake in the preheated oven for 40 minutes, or until a toothpick inserted in the center comes out clean.  

5. Cool and Slice  

   - Let the mochi cake cool completely in the pan.  

   - Once cool, slice it into squares and serve.  

   - Optionally, dust with purple sweet potato powder for extra flavor and presentation.