Black Sesame Buns

Steamed buns filled with black sesame paste are a classic East Asian favorite and are great for breakfast. Most of the time, the dough is just plain white dough, but for fun, let’s make the bun swirly. The spiral design on the dough is made from rolling two different doughs together – one that has a little bit of black sesame kneaded into it. The recipe for the dough is the same used for mantou.

Recipe

First, make the paste:
  1. Pulverize black sesame in a blender or food processor.
  2. Add some oil to a pan, then cook the black sesame until you get a paste the consistency of peanut butter. Add sugar to taste.
  3. Put in fridge. It’s easier to roll into balls when it is cold.
Second, activate the yeast:
  1. Activate yeast (about 1 tsp yeast for every 4 cups of flour) of by mixing active dry yeast with warm water (and a sprinkle of sugar may help feed the yeast), and wait 10 minute or so or until you see a lot of foam on top of the water. Then pour in with the dough.
Third, make the dough:
  1. Mix 4 parts all-purpose flour: 2 parts water (with the activated yeast): ½ part sugar (or less if you prefer). While buns are generally fat-free, they do get quite dry the next day when cold, unless you steam them again. Thus, you may add 1/8 part oil as an option into the dough, but add this after kneading everything together (kneading helps gluten formation, which causes bread to be chewy) because oil hinders gluten formation and if you add oil too early, the dough gets messy.
  2. Knead for a few minutes, shape into a ball. If it’s too wet and sticky, add more flour. If it’s too dry and flaky, add more water. Keep kneading until you get a really smooth and elastic dough. If you poke your finger in the dough, the dough should indent then bounce right back.
Fourth, let it rise:
  1. Let the dough with the yeast rise for 1 hr (or more, depending on the temperature of the environment), or until double the size. This step is called “first proofing” or “bulk fermentation.” Don’t let it over-rise or else later when you steam, you will have wrinkly buns.
Fifth, shape:
  1. Punch down the risen dough and knead it again to get rid of the big bubbles created by the yeast.
  2. To create a spiral design, split the dough in two, and add color to one of the doughs. For black, knead a spoonful of black sesame paste into the dough.
  3. For each dough, fold in thirds, roll out again, then fold in thirds again, then do over and over until you get plenty of “layers” of dough on each other. This will create a smooth surface when you steam the buns.
  4. Roll each dough into a flat sheet, then layer one on top of the other.
  5. Roll the layered dough into a log, then cut cross-sections to reveal the round spirals.
  6. Flatten each round spiral, then wrap it around ball of black sesame paste then pinch shut.
Sixth, let it rise again:
  1. Place each bun on parchment paper and place in a bamboo steamer under warm water to let rise for another 20 min or until texture is springy. Do not let it rise beyond 20 min as it will over-rise, which can lead to the bun surface over-stretching during steaming, then collapsing after steaming, causing a wrinkled surface appearance.
Seventh, steam:
  1. Pour out the warm water, and replace with cold water in pan and steam slowly for at least 20 minutes.
  2. Keep lid on for 5 minutes before opening. If you open too soon, you risk the bun surface collapsing, causing wrinkles on the surface.
  3. Enjoy while it’s warm. If you fridge it, be sure to steam for a few minutes again before eating. Or, wrap it with a wet paper towel, then microwaving it for 10-15 seconds.

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