01 -
In a small pot, mix the milk and flour. On medium heat, stir constantly till it turns into a thick paste. Stick it in the fridge for 10 minutes to cool down.
02 -
In a big bowl, toss in all the dough ingredients, except the butter, including the chilled tangzhong. Mix until it forms dough, then work in the butter. Knead for about 15 minutes—it'll feel sticky, but that's totally fine.
03 -
Grease a bowl lightly, put the dough inside, cover it up, and leave it in a warm spot. It'll double in size in 1-2 hours.
04 -
Sprinkle some flour on your counter and roll the dough into a big rectangle, about 1-1.5 cm thick. Spread the pistachio filling all over, roll it tightly from the longer edge, then cut it into 9 pieces using floss or a sharp knife.
05 -
Arrange the rolls inside an 8-inch square tin, leaving some space for them to rise. Cover and let them puff up in a warm area for about an hour.
06 -
In a preheated oven at 180°C/350°F, bake for 30-35 minutes until the tops are golden and irresistible. When done, drizzle on warm pistachio spread and sprinkle chopped pistachios if you'd like. Allow them to sit for about 10 minutes before serving.