Sweet Potato Mochi Squares — The Ones My Mom Makes… Are So Good

Why You'll Love It

If you're tired of plain roasted sweet potatoes, you have to lock this one in. Soft, chewy, fragrant, sweet — four hits at once, and the plate is empty in seconds.

And it's barely any work! Four ingredients, no kneading, and even the least handy person gets it right the first time.
The outside is thin and crisp; bite through it and you get dense, sweet sweet potato inside, chewy, wrapped in that natural potato aroma. Every bite is childhood happiness — you'll eat several without noticing.

Ingredients

Instructions

1. 1

   Wash, peel, and slice the sweet potato and steam it over high heat for 20 minutes, until a chopstick goes through easily. Mash it smooth while hot, stir in the sugar (a spoonful of condensed milk here is good too), then add the glutinous rice flour a little at a time, stirring with chopsticks until shaggy.

   

2. 2

   Knead by hand into a smooth dough that's neither sticky nor crumbly — a splash of milk if it's dry, more flour if it's sticky.
   Divide into equal pieces, roll each into a ball, then press gently into a small square. Brush a thin layer of water on the surface so the sesame sticks, and sprinkle with black sesame seeds.

   

3. 3

   Line the air fryer with parchment, add the squares, and air-fry at 350°F (180°C) for 10 minutes. Take them out, flip, and go another 10 minutes.
   For an oven: 350°F (180°C) for 15–20 minutes. Or pan-fry them in a little oil until golden on both sides.

   

4. 4

   Swap in purple sweet potato and you get gorgeous purple squares — same texture, same aroma.
   Eat them hot! Arrange them on a small plate, brew a pot of tea, and that's a proper afternoon break. Crisp outside, chewy inside is when they're at their best — the crust softens as they cool.

   

5. 5

   Quick tip: if you have cheese slices or mozzarella, tuck a little inside. They'll turn molten and stretchy, and the texture is even better.

Recipe Notes

Sweet Potato Mochi Squares

mashed sweet potato worked into glutinous rice flour, brushed with water and sprinkled with sesame, then air-fried until the outside is thin and crisp and the inside is dense and sweet. Chewy and deeply comforting.

Time Needed

Prepabout 20 minutes

Steaming the sweet potatoabout 20 minutes

Baking350°F / 180°C, about 15–20 minutes (flip halfway)

Totalabout 1 hour

Prep Ahead

• Peel, slice, and steam the sweet potato until a chopstick goes through easily; mash it and let it cool before using.
• The mixed dough can be chilled to firm up before cutting — cleaner edges.

1. 【Yield】10½ oz (300 g) sweet potato plus 1¼ cups (150 g) glutinous rice flour makes 12 squares.
2. 【Key ratios】Sweet potato mash to glutinous rice flour ≈ 2:1; adjust the 1½ tbsp (20 g) sugar to how sweet your potato is.
3. 【Heat】Air fry at 350°F (180°C) for 20 minutes total, flipping halfway; oven 350°F (180°C) for 15–20 minutes.
4. 【Shaping】Brush a thin layer of water on the surface before sprinkling sesame, so it sticks and doesn't shed.
5. 【Storage & reheating】Best eaten straight from the fryer — the crust softens as it cools. Unbaked pieces freeze up to 2 weeks.
6. 【Common problems】Cracked edges mean the dough was too dry — add a splash of milk. Collapsing after baking means wet mash — add more flour.

Nutrition (per 100 g, estimated)

Calories	about 249 kcal
Protein	about 3.5 g
Fat	about 3 g
Carbohydrates	about 52 g
of which sugars	about 12 g
Fiber	about 2 g
Sodium	about 60 mg

Estimated from the ingredient amounts, not lab tested. One square is about 1.4 oz (40 g), roughly 100 kcal, calculated at 4 / 9 / 4 kcal per g of protein / fat / carbs.