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1
Peel the sweet potatoes and cut into 1cm or so dice.
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2
Soak in plenty of water.
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3
Drain the potatoes very well, transfer to a bowl, sprinkle with light brown sugar and leave for 10 minutes.
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4
Boil water in the steamer.
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5
Cut six 9 cm squares and three 6cm squares of parchment paper.
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6
Moisture will start coming out of the sweet potatoes after 10 minutes.
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7
The moisture will be used as is.
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8
Add flour (no need to sift) and mix with a spatula.
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9
Watch the texture of the dough and add water little by little while mixing.
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10
Just add enough so that there are no lumps of flour, and the dough holds the potato pieces together.
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11
Plop the dough on the parchment paper.
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12
Put the dough and paper in the steamer and steam for 15 to 20 minutes.
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13
There's no need to cover with a kitchen towel.
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14
Test for doneness by sticking a toothpick through a piece of sweet potato; if it's cooked through the dumplings are done.
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15
Make small ones for children, or for when you're just a bit hungry.
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16
You can use less sugar to taste.
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17
If you use white castor sugar, you'll have a clean, sweet flavor.
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18
With light brown sugar the dumplings will have a mild sweetness.
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19
If you use a mixture of white castor sugar and dark brown sugar, the result will be a rich sweet flavor.