Ingredients

  • 170 grams Bread (strong) flour
  • 20 grams Whole wheat flour (cake flour type)
  • 5 grams Roasted wheat germ
  • 5 grams Pure cocoa powder
  • 15 grams Soft brown sugar
  • 3 grams Salt
  • 3 grams Dry yeast
  • 1/2 of a large egg Egg
  • 80 to 90 ml Milk
  • 10 grams Butter
  • 1 Poppy seeds
  • 1 the egg left over from making the dough Egg for glazing
  • 1 small jar Sweet chestnuts in sugar syrup
  • 200 grams Mashed sweet potatoes

Method

  • I bought this jar of chestnuts in sugar syrup at a 100 yen shop.
  • It contains 145 g, of which 75 g is solid.
  • There were 10 chestnuts, so I chopped up 4 to mix into the sweet potato paste, and used the rest whole, one per bun.
  • Make the sweet potato paste filling.
  • Put the mashed sweet potatoes and the chestnuts in syrup in a pan (add the syrup) and simmer to reduce.
  • Add sugar if you like.
  • Prepare the bread dough.
  • Put all the ingredients from the flour to the salt in the ingredient list in a bowl (keep the salt and yeast apart in the bowl).
  • Warm the milk in the microwave, and pour over the yeast.
  • Start mixing and kneading the dough.
  • Add the butter halfway through and knead it in.
  • Round the dough off into a smooth ball, cover with a tightly wrung out moistened kitchen towel and plastic wrap, and leave for the 1st rising until doubled in volume.
  • Punch down the dough and divide it.
  • I divided it into 6 portions this time.
  • Cover the dough with a moist kitchen towel again and rest for 15 minutes.
  • Deflate the dough again, and form into buns with the paste filling.
  • I made round buns first and then kind of made them into chestnut shapes.
  • Place the buns with the seam sides down on a baking sheet lined with parchment paper.
  • Cover again with the moistened kitchen towel and plastic wrap, and leave for the 2nd rising.
  • It's done when it has doubled in volume.
  • Pinch the pointy ends to make the buns more chestnut shaped.
  • Brush the buns with the remaining egg, and sprinkle on the white poppy seeds.
  • Bake at 180C for about 13 minutes and they're done!
  • The buns are about this size.
  • They look like this in the middle.
  • I used 45 g of paste filling per bun and had some left over, so if you stuff the buns a bit more you should be able to use it all up.
  • I these are made with dark brown sugar (20 g) instead of light brown sugar.
  • The buns became a little bit darker.
  • This one is stuffed half and half withChestnut paste and chunky red bean paste.