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ingredients:
- 120 g sweet potato
- 1/2 tablespoon matcha powder
- 80 g all-purpose flour, plain flour or cake flour
- 60 g sugar
- 450 ml water
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step 1:
Wash the sweet potato and cut into 1 cm. cubes. Pour 200 ml of the water into a pan and add the sweet potato cubes. Cover and boil for 7 minutes on medium heat until they become soft. Remove from the heat. Drain the water from the pan.
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step 2:
Mix the flour, matcha powder and the sugar in a bowl. Add the remaining 250 ml of water little by little and mix.
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step 3:
Pour into a microwave-proof container measuring about 10 × 15 × 5 cm. Add the sweet potato cubes. Cover with a paper towel and warm it in the microwave for 9 minutes.
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step 4:
Remove from the microwave and let it cool off a little. Place in the refrigerator and chill for 2 hours.

comment:
This cake has an interesting combination of textures - the sticky uiro (confection) and the crispy sweet potato pieces.