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1
Prepare the dough.
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2
In a bowl, mix all the ingredients except for the butter.
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3
With a rubber spatula, mix the dry ingredients with the liquid.
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4
Once it comes together, transfer onto a working surface and knead with your hand.
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5
Rub in the butter and knead well.
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6
When the dough has been worked to enough to activate the gluten, tear off 1/3 of the dough and form round shape with the remaining 2/3.
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7
Rub in the matcha paste to the 1/3 dough and knead well until you get an even green color.
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8
Together with the dough from Step 3, let the dough rise for the first proof for 40 - 60 minutes.
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9
Cut the sweet potatoes into 8 mm cubes and microwave or steam to soften.
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10
I used homemade boiled adzuki beans, but store-bought is also OK.
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11
When each portion of dough has doubled in size, punch down the dough and form into a ball.
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12
Cover the dough with a damp cloth and rest for 20 minutes.
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13
Roll out the white dough into the size of the loaf pan.
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14
On top of the dough, line up the sweet potatoes cubes.
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15
Then cover it with matcha dough, which was rolled out slightly smaller than the white dough.
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16
Make sure you press the air out of the dough in between the potatoes.
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17
Scatter the boiled adzuki beans evenly, but make sure adzuki won't fall out when you roll the dough.
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18
Roll it up from the front.
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19
Make sure there is no air pockets trapped inside by rolling the dough tightly.
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20
Seal the seams firmly.
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21
Put the dough into a lightly buttered loaf pan.
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22
Cover it with a damp cloth and rise for the second time for 40 - 60 minutes.
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23
When the dough has risen to 80-90% of the pan, close the lid (if you are using a round loaf pan, rise until the dough gets to 80 - 90% of the closed pan).
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24
Bake for 20 minutes in a preheated oven at 200C then lower to 180C and bake for 10 minutes.
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25
After it has baked, take out bread immediately from the pan and cool on a rack.
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26
Slice after it's completely cooled.
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27
If you scatter the sweet potatoes and adzuki beans evenly, right to the edges of the dough, it will look delicious and pretty all the way to the ends.